| 单词 | H2O |
| 例句 | To indicate the number of atoms in a molecule, Berzelius employed a superscript notation, as in H2O. A Short History of Nearly Everything 2003-05-06T00:00:00Z Later, for no special reason, the fashion became to render the number as subscript: H2O. A Short History of Nearly Everything 2003-05-06T00:00:00Z This is the winking setup to “H2O,” a new comic drama by the pseudonymous playwright Jane Martin, whose Jake, like Hamlet, is on the fence about whether to be or not to be. Review: Jane Martin’s ‘H2O’ Explores the Interdependence of the Sacred and the Profane 2015-12-01T05:00:00Z If you find plain old H2O boring, try infusing it with herbs like mint or basil and fruits and veggies like cucumbers, watermelon, and strawberries. Nutritionists share top tips for getting back on track after weekends of barbecuing 2021-07-19T04:00:00Z But wind had canceled all flights from Anchorage to Valdez for the day, so H2O had helped us arrange this alternate transportation. Explorer : A Sisterhood of the Snow in Alaska 2014-04-03T17:57:48Z My group’s guide that afternoon was H2O’s owner, Dean Cummings. Explorer : A Sisterhood of the Snow in Alaska 2014-04-03T17:57:48Z On Key West, the adults-only H2O Suites opened in March with 22 suites and a rooftop pool. Refining the Florida Keys 2017-06-08T04:00:00Z H2O molecules do the same thing when ice crystals are melted, becoming liquid water. Mark Miodownik: an obsession with materials 2013-05-24T15:53:00Z Liquid H2O is the sine qua non of life. Tough to swallow: Drinking too much water can be deadly 2014-02-14T13:30:00Z Judy was just asking me upstairs as she was getting out of the shower ... her skin was very damp, you know, H2O gathered in the shoulder dips? Review: In ‘Judy,’ Societal Regression, Circa 2040 2015-09-13T04:00:00Z Paisley's H2O Tour proved to be influential, however. Taylor Swift, Jason Aldean faves for CMA prize 2011-11-08T20:02:42Z By Day 3 we were getting used to unsolicited comments like the one Barry, another H2O guest from Denver, made at dinner that night. Explorer : A Sisterhood of the Snow in Alaska 2014-04-03T17:57:48Z But back to 2018, where more than five feet of rain brought not just a whole lotta H2O but also bizarre growing conditions. If 2018’s rains wrecked your garden, it might be time to try something new 2018-12-18T05:00:00Z The feds consider these reservoirs so pure that the Big Apple’s H2O is not required to be filtered. Your tap water is probably laced with anti-depressants 2013-03-14T21:01:00Z A quartz crystal is just a regular arrangement of these, in the same way that an ice crystal is a regular arrangement of H2O molecules or iron is a regular arrangement of iron atoms. Mark Miodownik: an obsession with materials 2013-05-24T15:53:00Z To find the best, we asked five experts what they use to get their daily dose of H2O. The best water glasses, according to experts 2017-05-10T04:00:00Z On view through mid-October in the Sussman Environmental Center, a multilevel outdoor space, “Dynamic H2O” is open whenever the museum is, as long as the exhibition’s subject is not falling from the sky. 5 Things to Do This Weekend 2021-08-26T04:00:00Z From the denatured Colorado River delta to abalone fisheries along China’s Fujian coast, the filmmakers find a species in thrall to H2O and largely heedless of the consequences of its unnatural manipulation. Movie Review: ‘Watermark’ Explores the Human Relationship With Water 2014-04-04T00:07:20Z A lot of help from my guitar player, Todd Morris, who was in a punk band called H2O. Juliette Lewis on acting: "I'm able to tap into very primal or dark ranges of emotion" 2020-03-09T04:00:00Z It is the symmetrical pattern of the H2O molecules that accounts for the delicate patterns of snow flakes. Mark Miodownik: an obsession with materials 2013-05-24T15:53:00Z Scott encouraged her to drink whatever she wanted, but she stuck with good old H2O. Date Lab: She thought it went well until he said, ‘Let’s keep in touch’ 2017-10-03T04:00:00Z Kobo announced Wednesday that it would launch a waterproof e-reader, the Kobo Aura H2O. Kobo to debut waterproof e-reader Aura H2O 2014-08-27T04:00:00Z But with its concert at the Clarice Smith Performing Arts Center on April 26, the Nile Project aims to direct your thoughts toward H2O in another part of the world. From the Nile Project, euphoric sound and a collaborative spirit flow 2015-04-16T04:00:00Z H2O’s message board in the hotel lobby, which keeps guests apprised of departure times and delays, read simply, “Go.” Explorer : A Sisterhood of the Snow in Alaska 2014-04-03T17:57:48Z Sea salt bath products are by H2O Plus. Check In, Check Out: Aulani Disney Resort and Spa ? Hotel Review 2011-12-15T21:29:06Z To find better snow, we’d by flying some 20 minutes or so into the mountains, part of the 2.6 million acres of public lands for which H2O has a permit to take clients. Explorer : A Sisterhood of the Snow in Alaska 2014-04-03T17:57:48Z Children may not immediately understand the title “Dynamic H2O,” but they don’t need to have studied chemistry to warm to this exhibition’s cool topic. 5 Things to Do This Weekend 2021-08-26T04:00:00Z It’s here in the gardens where three water-themed oeuvres invite visitors to experience H2O in the three forms in which it exists. Art-world star brings a contemporary perspective to the magnificent Versailles palace 2016-06-02T04:00:00Z Paisley traveled in from the road for his performance, kicking off with his hit "Water" - the centerpiece of his ironically titled H2O Tour. Paisley, Gill, Wariner and Skaggs rock the Opry 2010-05-26T01:01:00Z Even in its less high-stakes moments — like the installment in which a lifelong H2O skeptic begins drinking a gallon a day — this show will change the way you look at your body and its capabilities. 7 Podcasts for a Healthier Mind and Body 2020-01-31T05:00:00Z Or for younger audiences, "Aquamarine" or even "H2O: Just Add Water"? Maybe your mind goes to children's fairy tales, in which mermaids are fantastical creatures, destined to become princesses. "There's serious athleticism" to being a professional mermaid 2023-05-28T04:00:00Z According to Scott, the topic of H2O on Mars came up during his discussions with the agency. 'The Martian' Director Says He Knew About Mars Water 2015-09-29T04:00:00Z Ms. Cochran’s staff met privately with wastewater employees to collect information about payments to H2O Process Systems and eventually turned what they had gathered over to the F.B.I. Hawaii Bribery Scandal Casts a Shadow Over Lahaina’s Ruins 2023-10-25T04:00:00Z That means we need better prediction and detection—and we'd need astronauts to stay close to their H2O shield. Why We’ll Never Live in Space 2023-09-19T04:00:00Z We had another one about water called "H2O: The Molecule That Made Us" and a couple of feature docs as well. A new documentary presents devastation from climate change from the perspective of animals 2023-09-14T04:00:00Z Dried pasta is made by adding H2O to ground durum, a subspecies of Triticum turgidum; that is, by shaping and drying a mixture of water and semolina flour milled from durum wheat. Don’t tell Nonna: Science says this is the ‘right’ way to cook pasta 2023-08-08T04:00:00Z However, with Titan, astronomers believe that much of its surface is filled with liquid, but unlike on Earth, the liquid in question is not H2O, but liquid methane. Planetary scientists predict how rivers flow on Mars and Titan 2023-07-10T04:00:00Z Federal prosecutors put the total amount of all contracts paid to H2O Process Systems by Maui County at around $19.3 million since 2012. Hawaii Bribery Scandal Casts a Shadow Over Lahaina’s Ruins 2023-10-25T04:00:00Z To completely fill the outer shell of an oxygen atom, two electrons from two hydrogen atoms are needed, hence the subscript “2” in H2O. Concepts of Biology 2013-04-25T00:00:00Z Sprawling mansions attached to evergreen golf courses, idyllic lawns and massive swimming pools all suck up a disproportionate amount of H2O. The ultra-rich are destroying the planet at ultrasonic speed 2023-04-19T04:00:00Z “I spent all my life intimidated by any H2O product that is packaged in a green glass bottle,” said a TikTok user named makeupartistatlaw, who, inspired by Paltrow’s beverage, reviewed the brand. What Gwyneth Paltrow’s courtroom water says about her, and the brand 2023-03-31T04:00:00Z It also tends to adhere to itself, freezing in pure crystals of H2O. Why Is It So Hard to Make Vegan Fish? 2023-02-28T05:00:00Z The fuel would be produced from water, with renewable electricity — from solar panels or wind turbines, for instance — splitting H2O molecules into hydrogen and oxygen atoms. L.A. is shutting down its largest gas plant — and replacing it with an unproven hydrogen project 2023-02-08T05:00:00Z Each Sunday, Mr. Báez hosts a boisterous service at H2O Miami, as the church is known, with hundreds gathering around tables to sing along with a Christian rock band, lifting their hands in praise. Hispanic Evangelical Leaders Ask: Trump or DeSantis? 2023-01-03T05:00:00Z Alien worlds teeming with liquid H2O are more likely to produce extraterrestrials. Ocean spray may have created conditions for life to form on Earth, new study suggests 2022-10-07T04:00:00Z Mr. Damon had his own group known as H2O Africa. Bill, Hillary and Chelsea Clinton Return to Center Stage. Their Own. 2022-09-20T04:00:00Z What will happen to the concentration of each reactant and product at equilibrium if H2O is removed? Chemistry 2019-02-14T00:00:00Z Life on Earth has evolved within a framework of water, H2O, one of the most polar molecules. Biology for AP Courses 2022-06-09T00:00:00Z This in turn means a further increase in the atmospheric CO2 and H2O, gases that would amplify the greenhouse effect in Venus’ atmosphere. Astronomy 2016-10-13T00:00:00Z As for the water pumped from Juricek’s garage in West Hollywood, even as he takes shorter showers to conserve H2O, I’m still tracking the particulars. Column: Beneath parched L.A. is a sea of water. It bubbles up in places, but can it quench our thirst? 2022-07-30T04:00:00Z Instead of producing CO2 as a by-product, the reaction with hydrogen and iron produces only H2O… water. Celebrating new ways of reducing CO2 - the art of cutting carbon 2022-07-26T04:00:00Z What will happen to the concentration of each reactant and product at equilibrium if H2O is removed? Chemistry 2019-02-14T00:00:00Z The other product of this reaction is water, H2O. Biology for AP Courses 2022-06-09T00:00:00Z That would lead to still more heat near Venus’ surface and the release of further CO2 and H2O. Astronomy 2016-10-13T00:00:00Z The ᐧ2H2O in the formula indicates the water molecules are whole H2O. An Introduction to Geology 2017-01-01T00:00:00Z When two hydrogen atoms each share their single electron with oxygen, covalent bonds are formed, resulting in a molecule of water, H2O. Anatomy and Physiology 2013-06-19T00:00:00Z For example, water, H2O, and hydrogen peroxide, H2O2, are alike in that their respective molecules are composed of hydrogen and oxygen atoms. Chemistry 2019-02-14T00:00:00Z The familiar water molecule, H2O, consists of two hydrogen atoms and one oxygen atom; these bond together to form water, as illustrated in Figure 2.9. Biology for AP Courses 2022-06-09T00:00:00Z The evaporating H2O in turn releases the dust that was mixed with the ice. Astronomy 2016-10-13T00:00:00Z But H2O is hardly the most exciting development in the 47-year-old’s life. Chelsea Handler stopped yelling at Republicans. She still has opinions. 2022-06-08T04:00:00Z It commonly interacts with two atoms of hydrogen, forming H2O. Anatomy and Physiology 2013-06-19T00:00:00Z In this reaction, a proton is transferred from one of the aluminum-bound H2O molecules to a hydroxide ion in solution. Chemistry 2019-02-14T00:00:00Z Splitting one H2O molecule releases two electrons, two hydrogen atoms, and one atom of oxygen. Biology for AP Courses 2022-06-09T00:00:00Z Another added: “‘Do you know what H2O is?’ Ketanji Brown Jackson says she can’t provide definition of ‘woman’: ‘I’m not a biologist’ 2022-03-22T04:00:00Z Then he pulled up satellite images and identified patches of vegetation, potential signs of H2O. Blisters. Hallucinations: A hiker's grueling attempt to cross Death Valley in four days 2022-03-10T05:00:00Z Thus, a unit of water, or H2O, is a compound, as is a single molecule of the gas methane, or CH4. Anatomy and Physiology 2013-06-19T00:00:00Z For example, ammonia, NH3, is a weaker acid than is water, H2O, which is weaker than is hydrogen fluoride, HF. Chemistry 2019-02-14T00:00:00Z Stomata are pores, typically on the underside of leaves that regulate CO2, O2, and H2O exchange between plants and the external environment. Biology for AP Courses 2022-06-09T00:00:00Z The water is pushed through at a high pressure, and the membranes catch the salt and other dissolved minerals until all that’s left is pure H2O. How San Diego gets drinking water from the ocean 2021-10-29T04:00:00Z Water vapor—the gaseous form of H2O—is playing an outsized role in fueling destructive storms and accelerating climate change. Vapor Storms Are Threatening People and Property 2021-10-19T04:00:00Z Heavy water is a rarer version of H2O in which ordinary hydrogen has been replaced with deuterium—that is, with hydrogen atoms bearing an extra neutron. NASA Just Broke the ‘Venus Curse’: Here’s What It Took 2021-08-17T04:00:00Z The formula H2O, which can describe water at either the macroscopic or microscopic levels, is an example of the symbolic domain. Chemistry 2019-02-14T00:00:00Z Covalent bonds are also found in inorganic molecules like H2O, CO2, and O2. Biology for AP Courses 2022-06-09T00:00:00Z Water outdoor plants in the morning or evening so you don’t lose as much H2O to evaporation in the midday sun. Ways to save water during the drought — and whether it's worth doing at all 2021-08-09T04:00:00Z H2O clients were spooked in 2019 by concerns over liquidity and governance of the Windhorst assets, prompting some to withdraw cash. From goal posts to fishnets, German investor Windhorst hurries to clear billion-plus debt 2021-08-04T04:00:00Z The No. 1 need, many say: Clean up the “Coney water,” the local name for the skanky H2O that sometimes bubbles up from underground right into people’s basements. Powerball mystery: Someone in this tiny town won $731 million. Now everyone wants a piece of it. 2021-06-16T04:00:00Z What is the partial pressure of H2O in the product gases? Chemistry 2019-02-14T00:00:00Z Heavy water is a rarer version of the far more commonplace H2O, or normal water, in which ordinary hydrogen has been replaced with deuterium—that is, with hydrogen atoms bearing an extra neutron. Is NASA about to Lift the ‘Venus Curse?’ 2021-06-02T04:00:00Z To pry apart the hydrogen molecules locked in H2O, the Douglas County utility district will turn to an “electrolyzer,” which uses power to accomplish the separation from oxygen. It was an old apple orchard. Now it could be the future of clean hydrogen energy in Washington state. 2021-04-15T04:00:00Z In May, after months of wrangling, Windhorst announced a restructuring of some 2.5 billion euros of debt, reducing this to about 1.5 billion euros through write-offs and repayments, he said, paying back investors, chiefly H2O. From goal posts to fishnets, German investor Windhorst hurries to clear billion-plus debt 2021-08-04T04:00:00Z An advert for a single by rapper Bamby H2O which featured illegal drug use was "irresponsible" and must not appear again, the Advertising Standards Authority has said. YouTube drug-taking, sweary rap ad banned by ASA 2021-03-23T04:00:00Z When gaseous water is cooled sufficiently, the attractions between H2O molecules will be capable of holding them together when they come into contact with each other; the gas condenses, forming liquid H2O. Chemistry 2019-02-14T00:00:00Z H2O classic may be a prerequisite to all known forms of life, but countless brands insist they have found ways to “improve” water. 'Hydration is a simple thing': has the quest to improve water actually worked? 2021-03-09T05:00:00Z The global impacts of these components of rocket exhaust are small, a fraction of a percent of aviation’s CO2 and H2O global impacts. An Underappreciated Danger of the New Space Age: Global Air Pollution 2020-11-06T05:00:00Z “We are unaware of any other material reasonable for the Moon that exhibits a single spectral feature at 6 µm other than H2O,” Honniball and her fellow researchers report in their new paper. Water Found in Sunlight and Shadow on the Moon 2020-10-26T04:00:00Z Another entry analyzes ways to contend with flooding, namely, throw in the towel: build homes with “buoyancy blocks” that absorb H2O. Our Health Depends on Our Homes and Work Spaces 2020-09-08T04:00:00Z What is the instantaneous rate of production of H2O and O2? Chemistry 2019-02-14T00:00:00Z The new series “H2O: The Molecule That Made Us” takes a refreshing look at the science behind that most precious of fluids — water. What’s on TV This Week: 'Hustlers,' a salute to Prince and more 2020-04-17T04:00:00Z Scientists well understand how the CO2, H2O and Cl gas emissions from rockets affect climate and ozone. An Underappreciated Danger of the New Space Age: Global Air Pollution 2020-11-06T05:00:00Z Epiphora and two others specifically called out this water-based H2O lube. The 10 best eco-friendly condoms and lubes 2020-03-01T05:00:00Z "The thermodynamic conditions at the surface of the H2O layer range from the supercritical to liquid phases, with a range of solutions allowing for habitable conditions on K2-18b," the researchers wrote in the study's abstract. Recently discovered exoplanet is 'potentially habitable,' experts say 2020-02-28T05:00:00Z Identify the compounds that can behave as Brønsted-Lowry bases with strengths lying between those of H2O and OH−. Chemistry 2019-02-14T00:00:00Z The H2O Holy Faith complex, containing 90 flats, was the first to be brought down on Saturday. India demolishes illegal luxury high-rises 2020-01-11T05:00:00Z The unofficial event over the weekend was not sanctioned by H2O International. Man killed in crash in Montgomery County 2019-09-29T04:00:00Z At 12 ounces, it’s a tad heavy once you add H2O. The best reusable water bottles, for when you're ready to ditch your plastic habit 2019-07-19T04:00:00Z Make and guzzle H2O cocktail: room-temperature filtered water, dash of sea salt, quarter lemon, splash of apple cider vinegar. Robin Arzón’s Peloton Work Diary: ‘It Feels Like I Ingested Fire’ 2019-03-29T04:00:00Z Potassium oxalate, K2C2O4, is used as an anticoagulant when a blood sample is drawn for laboratory tests because it removes the calcium as a precipitate of CaC2O4·H2O. Chemistry 2019-02-14T00:00:00Z Understanding photosynthesis or H2O or electricity is just as foundational as understanding how the internet works or what an algorithm is. Hadi Partovi Was Raised in a Revolution. Today He Teaches Kids to Code. 2019-01-17T05:00:00Z More H2O: In this California House race, water is the “lifeblood.” Essential California: In this House district, Asian Americans hold the key to victory - Los Angeles Times 2018-11-02T04:00:00Z H2O is strangely sticky and viscous for a molecule with such a small molecular weight. A journey through wine, spit and oil 2018-09-04T04:00:00Z Operating under the business name of Access H2O, Hughes plans to make Morgantown, W.Va., the boat’s home port. Man ready to ply Monongahela waters with renovated riverboat 2018-09-03T04:00:00Z What is Ka for the acid reaction of HTe− with H2O? Chemistry 2019-02-14T00:00:00Z The Daily Times of Salisbury reports police arrested six people ranging in age from 13 to 20 Thursday outside the H2O under-21 nightclub. Police investigating arrests outside underage nightclub 2018-07-07T04:00:00Z “I want to see you finish this H2O before you hit the hard stuff.” “The Luck of Kokura” 2018-06-18T04:00:00Z Because the rotation of H2O molecules is affected by the nuclear spin, different attractive forces act between the partners in this chemical reaction. Two different forms of water isolated 2018-05-30T04:00:00Z “I am excited about this venture not only for myself, my family and Access H2O, but also for the small communities on the Upper Monongahela,” Hughes said. Man ready to ply Monongahela waters with renovated riverboat 2018-09-03T04:00:00Z The O atom balance may be achieved by changing the coefficient for H2O to 2. Chemistry 2019-02-14T00:00:00Z An individual H2O molecule does none of that: those are collective behaviors. What Is Spacetime? 2018-05-24T04:00:00Z Two of the restaurants, Dogfish Head Brewing and Grain H2O, will screen a new documentary on the impact of plastic straws on the environment this week. Some Delaware restaurants try to combat plastic pollution 2018-04-17T04:00:00Z Specialists in fluid mechanics don’t care that water actually made up of H2O molecules; they envisage it as a continuum. Cosmic Thinker Worries about the Ends of Science and Humanity 2018-03-17T04:00:00Z The group was sometimes called H2O, Behar said, a testament to their close friendship and working relationship. Former Starbucks CEO, UW Regent Orin Smith dies at 75 2018-03-03T05:00:00Z Both methanol and ethanol produce CO2 and H2O when they burn. Chemistry 2019-02-14T00:00:00Z It’s heavier than normal because each of the two hydrogen atoms in heavy H2O weighs two rather than one amu. Operation Gunnerside: The Norwegian Attack on Heavy Water that Deprived the Nazis of the Atomic Bomb 2018-02-23T05:00:00Z The Tennessee Department of Environment and Conservation will oversee the development of TN H2O. Tennessee editorial roundup 2018-02-07T05:00:00Z Blue droplet-shaped signs above office toilet sinks remind users “Conserve H2O. Use sparingly.” Cape Town faces Day Zero: what happens when the city turns off the taps? 2018-02-03T05:00:00Z A draft of the plan, TN H2O, will be available for public input by October. Tennessee governor appoints water availability panel 2018-01-18T05:00:00Z Water molecules are attracted to these −OH groups and form hydrogen bonds with them, which draws the H2O molecules up the cellulose molecules. Chemistry 2019-02-14T00:00:00Z Falls in the Northwest are beautiful in their own right, but they’ll usually give you a bigger dose of H2O and gray skies than sunshine. Exploring in the Northwest: Don’t leave without these 10 items | Provided By Northwest Motorsport 2017-11-28T05:00:00Z Yet droughts and flooding cost billions, as the planet is lashed by extreme weather and climate change and our lifestyles lap up gargantuan volumes of H2O. Books in brief : Nature : Nature Research 2017-10-31T04:00:00Z That hasn't stopped companies from trying to improve on the health benefits of H2O. How to Clean Your Filthy Cell Phone: This Week in Health 2017-08-25T04:00:00Z Feel free to add lemon to your H2O for a hit of electrolytes. This Is The Best Way to Detox Your Body 2017-08-23T04:00:00Z If the sample is cooled, will the distribution of speeds look more like that of H2 or of H2O? Chemistry 2019-02-14T00:00:00Z Getting some nutrients along with your H2O is the important thing, Desbrow says. You Asked: What’s the Best Way to Rehydrate? 2017-07-26T04:00:00Z Its unwanted H2O is to gush and gurgle its way through the city’s sewers. Mall’s Reflecting Pool to be drained and refilled 2017-06-09T04:00:00Z H2O is essential to a number of our body’s chemical processes, including the ability to release and tap into energy stores. HEALTH: Water is foundational, offers vital benefits 2017-05-05T04:00:00Z After the layers were separated, the organic layer was washed twice with a 2:1 mixture of H2O and 5% aqueous NaHCO3. Effective combinatorial immunotherapy for castration-resistant prostate cancer : Nature : Nature Research 2017-03-19T04:00:00Z What volume of CO2 and H2O gas is produced by the combustion of this propane? Chemistry 2019-02-14T00:00:00Z Make it tastier: If plain H2O is blah to you, spruce it up by throwing in orange or cucumber slices or fresh mint. How to Break Your 7 Worst Health Habits 2017-01-04T05:00:00Z Cows, which “gulp more than 2,000 ounces of H2O daily,” are smart about staying hydrated. It’s not really the holidays until you read about avoiding weight gain 2016-12-02T05:00:00Z In a German study, drinking 17 ounces of H2O increased metabolic rate by about 30 percent for more than an hour. 8 Metabolism Secrets That Help You Burn Calories 2016-11-04T04:00:00Z On the department store front, Seven & i said domestic retailer H2O Retailing Corp. 7-Eleven Seeks North American Expansion, in Bow to Daniel Loeb 2016-10-06T04:00:00Z Note that on the H2O phase diagram, the pressure and temperature axes are not drawn to a constant scale in order to permit the illustration of several important features as described here. Chemistry 2019-02-14T00:00:00Z Not with the manufacture of the gelid H2O, but with human behavior. My ice machine broke. I don’t miss it. Join me on the artisanal ice bandwagon. 2016-09-11T04:00:00Z The Israeli company supplies 70% of the tiny Middle Eastern country’s potable H2O. These 10 Companies Are Changing the World 2016-08-22T04:00:00Z More troublingly, a cartoon of a rapper named H2O peppered “Mas Que Nada” with corny rhymes that made the song less likely to charm young hip-hop fans. Sergio Mendes celebrates the Rio Olympics — and his long-running band — at the Hollywood Bowl 2016-08-14T04:00:00Z This lets it turn liquid from the air, sweat and even urine into drinkable H2O. Four ways Nasa is teaching us how to live more sustainably - BBC News 2016-04-19T04:00:00Z And as bracing to me as a cold glass of H2O. New presenters of amazing programs on science are helping to create exciting catalysts for thought 2016-04-01T04:00:00Z A German study discovered that downing two 8-ounce glasses of H2O improved calorie burning by 30% in as little as 10 minutes, and the effect lasted for more than an hour. 5 Quick Ways to Boost Your Metabolism 2016-03-24T04:00:00Z The event, to be held at Hunter College and sponsored by NYC H2O, a nonprofit education organization, is free but requires a reservation through its website at www.nych2o.org. An Underground Brook, Gallons of Sewage and a Century-Old Problem 2016-02-16T05:00:00Z For example, she’ll find out that the H2O molecule is also known as water, has a bent geometry and is safe to humans. The Coolest Toys at Toy Fair 2016 2016-02-16T05:00:00Z And if either beverage leaves you feeling zapped of energy, either from the caffeine or what you’re adding to it, wean down your intake and up the H2O, the ultimate health-boosting beverage. Coffee vs. Tea: Pros, Cons and How to Drink Them Best 2015-12-14T05:00:00Z Discharging a resource that falls freely from the heavens and replacing it with exactly the same H2O from far away is expensive, inefficient, energy intensive and ultimately inadequate for the population’s needs. Mexico City's water crisis – from source to sewer 2015-11-12T05:00:00Z Vaporcade is part of a larger company called the Human Health Organization, or H2O. This smartphone you can smoke is the ultimate vaporware 2015-11-05T05:00:00Z Researchers worldwide are also pursuing another rich vein: driving the low-temperature electrolysis of CO2 and H2O with energy directly from sunlight. Feature: There’s too much carbon dioxide in the air. Why not turn it back into fuel? 2015-09-10T04:00:00Z Moss Point police are still investigating the Sunday night shooting at Fusion H2O Carwash that left one man dead and two others injured. Man arrested in connection with weekend triple shooting 2015-09-10T04:00:00Z Ptolemy also detected compounds scientists expect in a comet, like H2O and CO2. The Philae Lander's First Look At The Chemistry Of A Comet 2015-07-31T04:00:00Z But once the light is on, the Blackout Buddy H2O will last 72 hours, making it handy in case of emergency. Review: Devices Adapted to the Outdoor Life 2015-06-17T04:00:00Z “Water is more than H2O, water’s a baptism, water’s a poetry, water has an iconic role in human history and human existence, so how we play with water, its not like a widget.” Gov. Jerry Brown sees California getting through drought 2015-06-09T04:00:00Z H2O Tracker is interesting to play, well designed and its advice is well written, so it is useful for educating young people. Video Feature: As California Thirsts, These Apps Help Save Water 2015-05-20T04:00:00Z Apply sufficient physical pressure to the brine, though, to overcome the osmotic pressure, and H2O will go the other way—which is a neat trick if you want to desalinate seawater. Looks swell 2015-03-12T04:00:00Z One is the familiar H2O, which consists of two hydrogen atoms and one oxygen atom. Ancient Mars Had an Ocean, Scientists Say 2015-03-05T05:00:00Z Rossi says H2O is a major component of your dermis—the layer of skin that houses many of the structural proteins that keep you looking youthful. You Asked: Can Smiling A Lot Really Cause Wrinkles? 2015-01-14T05:00:00Z You’ve heard about the unwanted effects of drinking both regular and diet soda, but you may not be aware of some of the benefits of drinking more H2O. 5 Healthy Eating Habits to Adopt This Year 2015-01-08T05:00:00Z Instead, stay hydrated by drinking plenty of good old H2O, Dr. Tabatabai says. 5 Ways to Recover From a Sugar Binge 2015-01-03T05:00:00Z It’s the one hardware feature Kindle can’t match — if you want a waterproof device, get the H2O. The best e-reader you can buy 2014-12-22T05:00:00Z It’s all H2O, but some of the H is a rare form of hydrogen known as deuterium, whose atoms carry not just a proton like the ordinary stuff, but a neutron as well. Dying for a Drink: How the Earth Got its Water 2014-12-11T05:00:00Z Weighing less than an ounce, costing under $10, and lasting up to 10 years without its battery degrading, the Blackout Buddy H2O is a must-have for your all-weather survival kit. These 5 Emergency Gadgets Can Save Your Life 2014-11-14T05:00:00Z And if you dislike the taste of plain H2O, spruce it up. 5 Healthy Eating Habits to Adopt This Year 2015-01-08T05:00:00Z Rosetta will test this hypothesis by measuring whether the H2O locked up in 67P's ice is chemically identical to the H2O on Earth. Kuiper Belt Missions Could Reveal the Solar System’s Origins 2014-10-15T04:00:00Z If you exercise first thing in the morning, Cohen says dehydration is a big concern because you’ve probably passed much of the night without a sip of H2O. You Asked: Should I Eat Before or After a Workout? 2014-09-17T04:00:00Z I'm a dude who likes to conserve H2O and wants my fellow residents to join! This 'Lawn Dude' is trying to get Californians to conserve water 2014-08-02T04:00:00Z Lose even 1.5% of that H2O—the tipping point for mild dehydration—and your mood, energy levels, and cognitive function all drop, according to research from the University of Connecticut. How much water you need to drink 2014-05-25T04:00:00Z The western climate is largely irrigated desert, yet, gallons of H2O cost less than a penny, and scarce water fills opulent swimming pools and quenches California desert lawns. To End California Drought, Fill More Hollywood And Silicon Valley Swimming Pools 2014-01-18T19:30:00Z One or two molecules of H2O are not wet, but put gazillions together at the right temperature and pressure, and wetness emerges. Is Consciousness Universal? 2014-01-01T05:45:00.400Z And even at concentrations as low as 0.5 micrograms per liter of H2O such fungicides can hurt many organisms, from tiny algae to big and fish. Dandruff Shampoo Could Mess Up Waterways 2013-12-01T14:45:00.510Z And if you collect those bubbles, you get twice as much hydrogen as oxygen - proof of the formula for water, H2O. Why do people hate the word 'chemicals'? 2013-11-27T01:47:08Z The facility would be contaminated by ordinary H2O, which if mixed with heavy water would render the latter unusable, because in order to work heavy water must be 99.75% pure. Iran Building Un-Bombable Reactor 2013-10-29T08:35:30Z I find the analysis/conclusions of the paper reasonable, as far as the amount of oxygen available to lie in H2O molecules is concerned. Pulverized Asteroid around Distant Star Was Full of Water 2013-10-10T19:45:02.563Z Let's get you motivated, inspired and excited to pound some good ol' quality H2O. How to Drink More Water Each Day 2013-09-13T14:23:00Z And no wonder – making breast milk requires a lot of H2O! What to Eat While Breastfeeding 2013-08-16T16:13:00Z H2O Africa was something we created to try identify smaller NGOs that were doing good work. India Ink: Matt Damon Tries to Get Clean Water and Toilets for India’s Poor 2013-08-29T06:07:05Z And instead of pumping heavy water into the reactor to moderate the nuclear reaction and absorb the thermal energy being released, Iran said it plans to use “light water,” just ordinary H2O. Iran Building Un-Bombable Reactor 2013-10-29T08:35:30Z I will never forget those nights with Eyob rocking the stage with his extraordinary voice specially at club H2O and faranight in Addis Ababa. Ethiopian singer Eyob Mekonnen dies 2013-08-19T16:25:15Z Metals, platinum-group elements, rare earth elements, and other volatiles, like H, H2O, and carbon compounds, are abundant on asteroids, many of which are relatively accessible from Earth. Beyond Earth's Atmosphere: Energy Needs For Space Colonization 2013-05-05T13:43:36Z Grassian likened the simplicity of this approach, in the climate models, to modeling the human body, which is made up primarily of , as a shapeless blob of H2O. Climate Secrets of Sea Spray and Clouds Revealed 2013-04-26T16:15:02.103Z A favorite for much of history: plain old H2O. Water sales heat up as taste for soda fizzles 2013-03-12T05:16:06Z A favorite for much of history: Plain old H2O. Water sales heat up as taste for soda fizzles 2013-03-12T02:30:35Z It’s always part of a compound, as in H2O. Disappointed With Electric Cars, Automakers Are Making Bad Bet On Fuel Cells 2013-02-06T19:13:59Z About a decade ago the film “H2O” was released. Letter from India: 2 States Split Bitterly by One River 2012-10-11T07:20:06Z "Shareholders are getting a shoddy deal," says Michael Jarman, chief equity strategist at H2O Markets, an ex-professional footballer and a United fan himself. Manchester United debt forces controversial share sale 2012-07-31T13:48:53Z But H2O that’s already liquid expands as it warms—and the oceans are warming from climate change. Warming Oceans Will Follow Laws of Physics 2012-06-24T14:15:02.877Z Others are desperately mining fossil H2O that seeped into rocks during the last ice age. Shortages: Water supplies in crisis 2012-06-19T07:45:21Z Even if you’re deskbound—and especially if you’re a woman—your body and your brain might need a shot of H2O. Dehydration Affects Women's Moods 2012-02-26T00:45:00.463Z The chemical changes are shown by the following analyses: H2O. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z Bruno Crastes, chief executive of H2O Asset Management, is betting commodity currencies such as the Australian dollar are expensive compared with the Korean won or Mexican peso. Hedge funds profit from quick bets in Europe crisis 2011-10-03T13:31:34Z Such questions as these will test the completeness of his knowledge: Why is the symbol of water H2O? Scientific Culture, and Other Essays Second Edition; with Additions 2011-09-17T02:00:31.747Z Cl2 + H2O = 2HCl + O. The bleaching action was not due to the chlorine “per se” but to the nascent oxygen produced in the presence of moisture. Chlorination of Water 2011-09-13T02:00:32.243Z If you can't glug one more ounce of H2O, opt for leafy greens or melons. Nine foods that fight fatigue 2011-08-17T17:19:04Z Team H2O spent a week pedaling across Washington from Kelso, north to Monroe then east to Spokane, where they spoke to promote their cause: Living Water. Three groups riding with motivation 2011-08-17T18:38:35Z The reaction C + H2O = CO + H2 is endothermic, that is, its thermal value is negative. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z As the positive pole of one H2O attracts the negative pole of another, the molecules cling tightly together. Buckyball Traps Single Water Molecule 2011-08-04T22:15:00.227Z A device for swimming without going near the H2O.. The Roycroft Dictionary Concocted by Ali Baba and the Bunch on Rainy Days. 2011-07-02T02:00:10.980Z We will evaluate the package which will do the prospecting for the volatiles, which will almost certainly include H2O. Race to the Moon 2011-05-18T14:23:06Z Team H2O left Austin, Texas, on June 20 and plans to return home Nov. 20 after making an 8,800-mile loop around the country. Three groups riding with motivation 2011-08-17T18:38:35Z According to the equation C + H2O = CO + H2, this gas consists theoretically of equal volumes of carbon monoxide and hydrogen. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Seal hopes to condense the steam, possibly with a system of cooling tubes, and reuse the captured H2O to clean equipment, help wash potatoes along manufacturing lines, and even irrigate the shrubs outside. Why Sustainability Is Winning Over CEOs 2011-03-31T21:00:00Z The leaf contains catalysts -- or molecules that accelerate chemical reactions -- that split H2O into hydrogen and oxygen gas. "Artificial Leaf" Might Provide Easy, Mobile Energy 2011-03-29T15:45:04.360Z We find that radial distribution functions and other structural properties reported by LGS are not strongly affected by variation of the polarization potential or the H2O point charges. [Technical Comment] Comment on ?Does the Hydrated Electron Occupy a Cavity?? 2011-03-17T18:25:24.183Z Determinations have been made with calcium oxalate, CaC2O4 + H2O, which is easily decomposed by acids, oxalic acid and a soluble calcium salt being formed. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z For H2O, unfortunately, the financier is likely to turn out to be what teenage girls and Hollywood gossip columnists call a frenemy. Hedge Fund Guy’s New Best Friend Is Wet, Wet, Wet: Davos Diary 2011-01-28T04:23:14Z “We’ve had enough H2O for one week,” Penny declared, gazing at her splashed stockings. Saboteurs on the River 2011-01-28T03:00:23.967Z Burberry shares are effectively trading at a premium, H2O Markets believes the ambitious expansion plans outlined by the group and continued takeover speculation will continue to underpin growth into 2011. BP falls back on US lawsuit, but broker pitches possible Exxon bid 2010-12-16T17:13:07Z Although the presence of lunar ice and water vapor was reported from that mission, the amount of H2O present was not known until the newest papers were released. What's the moon made of? NASA mission finds it's nothing so simple as cheese. 2010-10-22T02:46:04Z In other words, there's a reason the Earth is called the blue planet: It's covered in a lot of H2O. Earth contains a vast amount of water, but scientists are unsure of its origins 2010-11-08T21:10:00Z The finding, which had a reporting error of plus or minus 2.9 percent, described a considerably higher concentration of H2O than expected. What's the moon made of? NASA mission finds it's nothing so simple as cheese. 2010-10-21T18:15:00Z Already, the Phillies’ rotation has a catchy nickname — H2O, for the first initials of their last names. Relying on Pitching, Phillies Save Big Celebration 2010-10-12T01:50:00Z It's true: Thanks to the hydrologic cycle, we drink and bathe in the same H2O that rained on the dinosaurs. Green Lantern: Some use of water is more wasteful than others 2010-10-04T21:34:00Z The finding, which had a reporting error of 2.9 percentage points, describes a considerably higher concentration of H2O than expected. What's the moon made of? NASA mission finds it's nothing so simple as cheese. 2010-10-22T02:46:04Z Close to this core, the cloud was very hot - too hot for compounds such as H2O to condense, so they got blown outward by a powerful solar wind. Earth contains a vast amount of water, but scientists are unsure of its origins 2010-11-08T21:10:00Z But if the magma also contained a lot of hydrogen—perhaps in the form of water, H2O—a competing process would also take place. All Wet, or High and Dry? 2010-08-09T14:55:00Z That H2O signature, according to an ESA announcement on June 24, is precisely what the spacecraft did find. Venus Had Water, May Have Been Habitable, Say Scientists 2010-06-29T08:00:00Z On top of that, SparkPeople wants you to drink lots of H2O, at least eight cups a day. Do you need a 'Spark' to lose that weight? 2010-06-17T04:00:00Z As chief executive of H2O Audio, Kampfer oversees a range of waterproof accessories from headphones to iPhone cases to neoprene armbands for iPods. Waterproofing Your Vacation 2010-06-08T22:00:00Z H2O Audio also sees a market for a waterproof iPad case. Creating A Waterproof iPad Case 2010-06-08T22:00:00Z There are charged particles that are hitting Europa's surface and making chemical reactions - hitting the H2O and creating oxygen on the surface. 2010-02-04T13:55:00Z Arsenic acid, H3AsO4, is prepared as shown above, the compound 2H3AsO4�H2O on being heated to 100� C. parting with its water of crystallization and leaving a residue of the acid, which crystallizes in needles. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" The ions H+ and OH- are of special importance, since they are the ions of water, H2O = H+ + OH-. The Mechanism of Life Next, H2O Audio plans to target the millions of joggers, bicyclists and gym rats that might want audio gear that can be worn in the rain or rinsed after an intense workout. Waterproofing Your Vacation 2010-06-08T22:00:00Z Visible water is not a more less erroneous presentation of H2O, but H2O is a knowledge about the thing we see, drink, wash with, sail on, and use for power. Creative Intelligence Essays in the Pragmatic Attitude "Oh H2O!" snorted the good red herring, "you talk like a fish out of water." The Book of Gud Assuming, then, that formaldehyde is the first photosynthetic product in the process of the production of carbohydrates from water and carbon dioxide, the simple empirical equation for this transformation would be H2O + CO2 = CH2O + O2. The Chemistry of Plant Life The process goes on until a relatively small quantity of water has by instalments dissolved and hydrated the 2CaSO4�H2O, and has deposited CaSO4�2H2O in felted crystals forming a solid mass well cemented together. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The acid is thus obtained in colourless rhombic prisms of the composition C6H8O7 + H2O. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" In composition it approximates to Cr2O3�H2O, but it always contains more or less boron trioxide. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" In the case of sodium dihydrogen phosphate, NaH2PO4�H2O, a stable rhombic form is obtained from warm solutions, while a different, unstable, rhombic form is obtained from cold solutions. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" "As the bosun remarked this morning, when a few playful tons of H2O rolled him along the main deck, ''Ere we are, swiggle me stiff, safe and sound at sea again!'" Fire Mountain A Thrilling Sea Story In a few minutes the surplus hydrated calcium sulphate is deposited from the solution, and the water is capable again of dissolving 2CaSO4�H2O, which in turn is fully hydrated and deposited as CaSO4�2H2O. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" "H2O" means to a chemist just as much as "w-a-t-e-r" means to you; and it means even more, because it tells that water is made of two parts hydrogen and one part oxygen. Common Science Similarly, water a liquid, is made up of two parts of hydrogen and one part of oxygen, represented by the symbol H2O. The Automobile Storage Battery Its Care And Repair The only ones he recalled just then were H2O and CO2, and he amused himself by watching to see if they turned up. The Wall Street Girl "A double dose for that!" howled Pole, and Benz was forced to submit to another flood of H2O. Over the Line It also exists in tea, formerly known as “theine” which is now known to be identical with caffeine; both are expressed by the formula C8H10N2O2+H2O. The Medicinal Plants of the Philippines From the compound H2O we infer that the atom of Oxygen consists of twice as many links as the atom of Hydrogen. Aether and Gravitation Along with the oxygen there is water vapor, but it isn't H2O. The Sky Trap The copper emerald is rare; it is a hydrous form of copper silicate, CuOSiO2 + H2O, of a beautiful emerald green, varying from transparent to translucent. The Chemistry, Properties and Tests of Precious Stones H2O was, anywhere on the planet, a whitish, crystalline mineral suitable for building material. Unwise Child The self-poisons can be best got rid of by abundant exercise in the open air and plenty of pure, cold H2O, internally and externally. Preventable Diseases It gives off CO2, H2O, and urea, by the placenta, and it receives O and elaborated food material through the same organ. Text Book of Biology, Part 1: Vertebrata Dissolve ½ gm. of baking powder in 5 cc. of H2O and 3 cc. Human Foods and Their Nutritive Value We have water enough in tanks to last us three months, or indefinitely if we should have to be careful, as we can automatically distill and purify all our waste water, recovering absolutely pure H2O. The Skylark of Space At sixty below, frozen H2O isn’t slushy, by any means; it isn’t even slippery. Unwise Child It is made by passing steam over very hot anthracite coal, when the reaction shown in the following equation takes place: C + H2O = CO + 2H. An Elementary Study of Chemistry True, we have things like NaCl solutions in ordinary H2O which will carry electricity, but here it's ionic conduction. The Black Star Passes H2O and heat on a sand bath to coagulate the albumin. Human Foods and Their Nutritive Value When the missionary asked for an explanation, the officer opened one of the books and pointed to the expression H2O, which occurred very frequently in it. Winning a Cause World War Stories When silicone tissue is metabolized, the carbon and hydrogen go to CO2 and H2O, which are breathed out, while the silicone goes into SiO2, which is deposited as more teeth and armor. Uller Uprising In these last two reactions the hydrogen dioxide formed may decompose into water and oxygen if the temperature is allowed to rise: H2O2 = H2O + O. Peroxides. An Elementary Study of Chemistry You cannot conceive H2O, which is the chemical form of water, without having humidity associated; for that is an inherent quality of water. The Promulgation of Universal Peace To 20 cc. of milk or cream in a beaker add 20 cc. of acid mercuric nitrate and about 40 cc. of H2O. Human Foods and Their Nutritive Value Now H2O is the chemical symbol for water and means that two atoms of hydrogen unite with one atom of oxygen to form one molecule of water. Winning a Cause World War Stories But here at least, by dint of thought, I feel that I can bring to naught The rise in H2O. Punch, or the London Charivari, Volume 159, August 11, 1920 When this alloy is treated with water the following reaction takes place: Na + H2O = NaOH + H. Fig. An Elementary Study of Chemistry I can tell a class of juniors the difference between H2O and H2SO4, but the theory of time-travel is wasted on me.... Hunter Patrol H2O and evaporate to dryness over the sand bath. Human Foods and Their Nutritive Value However, we are on active service and so are not afraid of H2O. One Young Man The simple and true story of a clerk who enlisted in 1914, who fought on the western front for nearly two years, was severely wounded at the battle of the Somme, and is now on his way back to his desk. Hence the compound atom or molecule of water, H2O, weighs 18. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association Sodium carbonate forms large crystals of the formula Na2CO3 · 10 H2O. An Elementary Study of Chemistry Our first few tours in this new sector might well be described as a nightmare of H2O and H2S. The Fifth Leicestershire A Record Of The 1/5th Battalion The Leicestershire Regiment, T.F., During The War, 1914-1919. We can show the change most simply in this fashion: C2H2 + H2O → C2H4O acetylene added to water forms acetaldehyde Acetaldehyde is not of much importance in itself, but is useful as a transition. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Chemists beginning with simple bodies like CO2 and H2O were climbing the ladder, each round of which was represented by compounds of higher complexity. The Story of the Living Machine A Review of the Conclusions of Modern Biology in Regard to the Mechanism Which Controls the Phenomena of Living Activity It will be seen that the dehydration has never passed the composition corresponding to 2 CaSO4 + H2O; indeed, the material approximates more nearly to the composition 3 CaSO4 + H2O. Scientific American Supplement, No. 794, March 21, 1891 This salt, commonly called bicarbonate of soda, or baking soda, is made by the Solvay process, as explained above, or by passing carbon dioxide into strong solutions of sodium carbonate: Na2CO3 + H2O + CO2 = 2NaHCO3. An Elementary Study of Chemistry Decomposing water by sodium, only one-half of the hydrogen contained is eliminated, the other half, together with all of the oxygen, uniting with the metal to form sodium hydroxide, H2O + Na = H + NaHO. Scientific American Supplement No. 822, October 3, 1891 Expressed in chemical shorthand this reaction is C6H10O5 + H2O → C6H12O6 starch water dextrose This reaction is carried out on forty million bushels of corn a year in the United States. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries You replied: "The correct symbol, according to our instructor, is H2O." Elements of Debating Pure water does not exist in nature, that is, we have never found a compound of the composition H2O. Maintaining Health Formerly Health and Efficiency When water is added to this mixture the cream of tartar slowly acts upon the soda present liberating carbon dioxide in accordance with the following equation: KHC4H4O6 + NaHCO3 = KNaC4H4O6 + H2O + CO2. An Elementary Study of Chemistry We know that living tissues give off products, and that these are not merely pure CO2 and H2O, but complicated compounds. Hormones and Heredity Copiousness with the H2O, Miss Lessways, is the father of smudged epistles. Hilda Lessways So 'water' did not signify merely the physical substance which modern chemistry defines by the formula H2O; nor was 'air' the mixture of gases characteristic of the earth's atmosphere. Man or Matter It can be separated from H2O by electrolysis, or by C, as in the manufacture of water gas. An Introduction to Chemical Science When a solution of zinc chloride is slowly evaporated a salt of the composition ZnCl2·H2O crystallizes out. An Elementary Study of Chemistry Maggie, get the corkscrew into action and fill the glasses with the choicest vintage of H2O. Children of the Whirlwind Every school-boy now is aware that H2O is the chemical way of expressing the union of two atoms of hydrogen with one of oxygen to form a molecule of water. A History of Science — Volume 4 He knew the extent of his credit as well as the Chemical National Bank knows the amount of H2O that collateral will show on analysis. Options Evidently two atoms of H are needed, as H-O-H, or H = O , or H2O. An Introduction to Chemical Science H2O will represent water, the molecules of which consist of 1 atom of oxygen and 2 of hydrogen, the subscript figure indicating the number of the atoms of the element whose symbol precedes it. An Elementary Study of Chemistry It is as if some eminent scientific man were to insist upon writing H2O instead of "water," and "sodium chloride" instead of "table salt" in his private correspondence. Soul of a Bishop It hardens by evaporating the extra H2O, absorbing CO2 from the air, and uniting with Si02 to form calcium silicate. An Introduction to Chemical Science This, on being mixed with water, again takes up 2 H2O, and hardens, or sets, without crystallizing. An Introduction to Chemical Science H2O, and at once put in a short piece of Cu wire, or a cent. An Introduction to Chemical Science Is the reaction expressed by the equation 2H + O = H2O reversible? An Elementary Study of Chemistry From the top of the furnace N, CO, CO2, H2O, etc., escape. An Introduction to Chemical Science Impure MnO2, which sometimes contains C. CO2 is soluble m H2O. An Introduction to Chemical Science Water, H2O, is only a chemical union of O and H. Iron rust, Fe2O3 and H2O, is composed of O, Fe, and water. An Introduction to Chemical Science At the + electrode is the - element of H2O, and at the - electrode the + element. An Introduction to Chemical Science The product of this reaction is sulphuric acid, so that sulphur trioxide is the anhydride of that acid: SO3 + H2O = H2SO4. An Elementary Study of Chemistry Compute the proportion of it, by weight, in water, H2O. An Introduction to Chemical Science Hang on a ring stand, and slowly heat the tubes containing H2O and H2SO4. An Introduction to Chemical Science This is the characteristic test for H2SO4 and soluble sulphates, and so delicate that one drop in a liter of H2O can be detected. An Introduction to Chemical Science The positive portion, K, uniting with H2O forms a base; the negative part, S03, with H2O forms an acid. An Introduction to Chemical Science Water gas, which contains large amounts of carbon monoxide, is made by partially oxidizing carbon with steam: C + H2O = CO + 2H. An Elementary Study of Chemistry So thirsty is it that it even abstracts H and O from oxalic acid in the right proportion to form H2O, combines them, and then absorbs the water. An Introduction to Chemical Science Watch the action, as the Na decomposes H2O. An Introduction to Chemical Science Experiment 64.—Drop a small piece of K into a receiver of H2O, as in Experiment 62. An Introduction to Chemical Science If the molecule has one atom of O, it must have two of H, and the formula will be H2O. An Introduction to Chemical Science Thus, if we wish to call attention to the details of the reaction between sodium hydroxide and hydrochloric acid in solution, the equation is written as follows: Na+, OH- + H+, Cl- = Na+, Cl- + H2O. An Elementary Study of Chemistry Its affinity for H2O is so great that it takes the latter from the air, if exposed. An Introduction to Chemical Science Oxalic acid consists of H, C, O in the right proportion to form H2O, CO2, and CO. An Introduction to Chemical Science C unites with the O of H2O, forming CO, and sets H free, thus producing two inflammable gases. An Introduction to Chemical Science In H2O, SO2, CO2, the molecule has three atoms condensed into the space of two, or one-third shrinkage. An Introduction to Chemical Science Carbonic acid is very unstable, however, and decomposes into its anhydride, CO2, and water, thus: H2CO3 = H2O + CO2. An Elementary Study of Chemistry Give the reaction for the solution of CO2 in H2O. An Introduction to Chemical Science Throughout the body, wherever necessary, C and H are supplied for the O, and unite with it to form CO2 and H2O. An Introduction to Chemical Science Fishes and other aquatic animals obtain it, not by decomposing H2O, but from air dissolved in water. An Introduction to Chemical Science H2O, and loosely covered, as in the O experiment. An Introduction to Chemical Science They immediately decompose the water according to the equation Na + H2O = NaOH + H, and hydrogen is evolved about the cathode. An Elementary Study of Chemistry Constituents.—The four chief constituents of the atmosphere are N, O, H2O, CO2, in the order of their abundance. An Introduction to Chemical Science Water.—The volume of H2O, watery vapor, in the atmosphere is very variable. An Introduction to Chemical Science Pour through the tube a little H2SO4 dilated with its volume of H2O. An Introduction to Chemical Science Vast quantities of the poisonous SO2 gas are also liberated during an eruption, this being, in volume of gases evolved, next to H2O. An Introduction to Chemical Science Thus, according to the equation H2O = 2H + O, 1 molecule of water is decomposed into 2 atoms of hydrogen and 1 atom of oxygen. An Elementary Study of Chemistry If it is not discharged from all, put a little H2O into the receiver, shake it well, and state what ones are bleached. An Introduction to Chemical Science As dry material will not bleach, Cl seems to unite with H in H2O and to set O free. An Introduction to Chemical Science H2O and look for a ppt. of I. Does this show that I is not at all soluble in H2O, or not so soluble as in alcohol? An Introduction to Chemical Science It dissolves S, P, rubber, gums, and many other substances insoluble in H2O. An Introduction to Chemical Science In the presence of sulphuric acid, oxalic acid is oxidized by potassium permanganate according to the equation C2H2O4 + O = 2CO2 + H2O. An Elementary Study of Chemistry H2O in a t.t., and pour it over the starch, stirring it meanwhile. An Introduction to Chemical Science H2O, note the color, then boil, and finally cool. An Introduction to Chemical Science The volume of the H atom and that of the half-molecule of H2O, or of any gas are identical, each being represented by one square. An Introduction to Chemical Science To see whether H2S is soluble in H2O, put a few drops of the water on a silver coin. An Introduction to Chemical Science The tar is mostly taken out at the hydraulic main, which also withdraws some H2O with other impurities in solution. An Introduction to Chemical Science The condensers remove the rest of the tar, and the H2O, except what is necessary to saturate the gas. An Introduction to Chemical Science Green plants—those containing chlorophyll— manufacture their own starch from CO2 and H2O. An Introduction to Chemical Science CO2 and a very little H2O enter the leaf from the air, H2O being also drawn up through the root and stem from the earth. An Introduction to Chemical Science The AsH3 mixed with excess of H tends to escape and is burned to As2O3 and H2O, and thus is rendered comparatively harmless as it passes into the air. An Introduction to Chemical Science CO2 + 5 H2O = C6H10O5 + 12 O. As no such change takes place in darkness, all green plants must have light. An Introduction to Chemical Science Parchment paper, vegetable parchment, is made by dipping unglazed paper for half a minute into cold dilute H2SO4, 1 part H2O, 2 1/2 parts H2SO4, and then washing. An Introduction to Chemical Science After a time, if left exposed, another organism finds its way to the alcohol, and transforms it into acetic acid, HC2H8O2, and H2O. An Introduction to Chemical Science Still a third species of ferment may cause another action, changing acetic acid to H2O and CO2. An Introduction to Chemical Science It may be slaked either by exposure to the air, air-slaking, when it gradually takes up H2O and CO2; or by mixing with H2O, water-slaking. An Introduction to Chemical Science All the constituents, except CO2 and a very small quantity of H2O, are absorbed by the roots, from the soil, from which they are soon withdrawn by vegetation. An Introduction to Chemical Science To the second class belong fats and oils; to the third, starch, sugar, and gums; to the fourth, H2O, NaCl and other salts. An Introduction to Chemical Science |
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