| 单词 | chemical property |
| 例句 | Electrons determine the chemical properties of the atom—the glitter of gold, the cold feel of iron, the crystal structure of the carbon diamond. Cosmos 1980-01-01T00:00:00Z But after a few seconds the smell’s chemical properties seared his nostrils, and he covered his nose with his handkerchief. Middlesex: A Novel 2002-06-05T00:00:00Z If you make the ninety-first cut of the apple pie, if you slice a carbon nucleus, you make not a smaller piece of carbon, but something else—an atom with completely different chemical properties. Cosmos 1980-01-01T00:00:00Z In this way, the unique chemical properties of water, fats, proteins and sugars come together with air to give the solid, liquid and gas mixture we know and love. How does ice cream work? A chemist explains why you can’t just freeze cream and expect results 2023-07-25T04:00:00Z Because of its unique physical and chemical properties, gold is adaptable to all kinds of shapes and forms. 'Going for Gold' at SAM has a fine luster 2012-11-08T21:11:08Z They are increasingly prized for their potential to remove heavy metals from water thanks to their large surface area and adsorption capabilities, their nano-scaled size and their chemical properties. The unique technologies than help to prevent widespread water scarcity 2023-03-13T04:00:00Z He's got to work out the chemical properties of plutonium. A life in writing: Ray Monk 2012-11-09T22:55:03Z Over time, lead can get integrated into bones because the body mistakes it for calcium, owing to similar chemical properties. The vice of spice: confronting lead-tainted turmeric 2023-08-02T04:00:00Z Engineered into nanomaterial form, carbon nanomaterials are being hailed by many scientists around the world for their superior physical and chemical properties. The unique technologies than help to prevent widespread water scarcity 2023-03-13T04:00:00Z Then came the Industrial Revolution, crunching and sluicing away, and changing pretty much everything: social structures, urban spaces, land use, belief systems, historical topography, not to mention the chemical properties of earth, water and air. The Danish Experience: Art That Marries Real and Ideal 2023-03-23T04:00:00Z "Eucalyptus and pines generate irreversible changes in the physical chemical properties of the soil. The soil becomes acidic very quickly," he says. Does the paper industry need to cut its water usage? 2023-10-22T04:00:00Z This could be useful for applications in quantum chemistry and quantum computing, as molecules in the same quantum state share physical and chemical properties. ‘Quantum Superchemistry’ Observed for the First Time Ever 2023-08-15T04:00:00Z They are lighter and can handle far higher temperatures than traditional magnets, in part due to their unique chemical properties. Insight: World battles to loosen China's grip on vital rare earths for clean energy transition 2023-08-02T04:00:00Z The chemical properties of rare earths make them difficult to separate from surrounding materials, and processing generates toxic waste. Explainer-China's rare earths dominance in focus after mineral export curbs 2023-07-05T04:00:00Z This changes the chemical properties of the molecule. Concepts of Biology 2013-04-25T00:00:00Z In 1915, Hollmann was the acting assistant surgeon at Hawaii’s Leprosy Investigation Station when he was given a copy of Ball’s master’s thesis, a 44-page analysis of the kava plant’s chemical properties. Overlooked No More: Alice Ball, Chemist Who Created a Treatment for Leprosy 2023-04-08T04:00:00Z As private companies around the globe come up with processes to produce SAF from different feedstocks, they must analyze their product to ensure it has similar chemical properties to conventional jet fuel. The aerospace industry needs climate-friendly fuel. Can WA help? 2023-03-31T04:00:00Z The physical and chemical properties of elements are directly related to the number of electrons a neutral atom has. College Physics for AP Courses 2015-08-12T00:00:00Z The chemical properties of the different isotopes are very similar because they have identical electron structures, but they differ in some physical properties because of their differing atomic masses. Chemistry 2019-02-14T00:00:00Z The chemical properties that emerge from the particular arrangement of amino acid R groups within an active site create the perfect environment for an enzyme’s specific substrates to react. Concepts of Biology 2013-04-25T00:00:00Z Each of the four types of macromolecules—proteins, lipids, carbohydrates, and nucleic acids—has its own characteristic set of functional groups that contributes greatly to its differing chemical properties and its function in living organisms. Biology for AP Courses 2022-06-09T00:00:00Z Molecules are the smallest particles into which any matter can be divided while still retaining its chemical properties. Astronomy 2016-10-13T00:00:00Z Shells and the number of electrons in them determine the physical and chemical properties of atoms, since it is the outermost electrons that interact most with anything outside the atom. College Physics for AP Courses 2015-08-12T00:00:00Z To account for the existence of isotopes, the second postulate of his atomic theory was modified to state that atoms of the same element must have identical chemical properties. Chemistry 2019-02-14T00:00:00Z These carbon compounds have many different chemical properties that living things depend on. Miller & Levine Biology 2018-01-01T00:00:00Z The aquatic medium—water— has different physical and chemical properties than air, however. Biology for AP Courses 2022-06-09T00:00:00Z The aquatic medium—water— has different physical and chemical properties than air. Environmental Biology 2018-09-06T00:00:00Z The physical and chemical properties of water are what make it essential to life and useful to civilization. An Introduction to Geology 2017-01-01T00:00:00Z Metallic character results from an element’s ability to lose its outer valence electrons and results in high thermal and electrical conductivity, among other physical and chemical properties. Chemistry 2019-02-14T00:00:00Z The specific order in which amino acids are joined together in a polypeptide chain determines the shape, chemical properties, and, ultimately, function of a protein. Miller & Levine Biology 2018-01-01T00:00:00Z The chemical properties that emerge from the particular arrangement of amino acid residues within an active site create the perfect environment for an enzyme’s specific substrates to react. Biology for AP Courses 2022-06-09T00:00:00Z An atom is the smallest component of an element that retains all of the chemical properties of that element. Environmental Biology 2018-09-06T00:00:00Z Because how efficiently drug molecules can cross the intestinal lining can vary depending on the drug's chemical properties, some of the drugs you swallow never get absorbed and are removed in your feces. How do drugs know where to go in the body? A pharmaceutical scientist explains 2022-06-19T04:00:00Z The chemical properties of ammonia are as follows: Chemistry 2019-02-14T00:00:00Z Isotopes have different masses, but their chemical properties are the same. Miller & Levine Biology 2018-01-01T00:00:00Z An atom is the smallest unit of matter that retains all of the chemical properties of an element. Biology for AP Courses 2022-06-09T00:00:00Z Other liquids have different chemical properties and can lead to false results. NOT REAL NEWS: A look at what didn’t happen this week 2021-12-31T05:00:00Z The company reviews the chemical properties of the oil to ensure iron levels are not high, which would indicate a pipe's deterioration, another former employee familiar with the procedure said. Despite preparation, California pipeline operator may have taken hours to stop leak 2021-10-08T04:00:00Z Although it has some chemical reactivity that is similar to that of the alkali metals, hydrogen has many of the same chemical properties of a nonmetal with a relatively low electronegativity. Chemistry 2019-02-14T00:00:00Z Oil has chemical properties that hinder its capture once it takes to water. Op-Ed: The Huntington Beach oil spill is a once and future catastrophe 2021-10-05T04:00:00Z For example, due to their different chemical properties, butane is suited for use as a fuel for torches, whereas isobutene is suited for use as a refrigerant and a propellant in spray cans. Biology for AP Courses 2022-06-09T00:00:00Z The maps de Caritat presented at the conference used variables including color, texture, pH, and other chemical properties to differentiate patches of soil. Soil maps help scientists dig up dirt in criminal investigations 2021-08-06T04:00:00Z Those molecules all resist breaking apart, and each has distinct chemical properties that must be tackled differently. Could plastic-eating microbes take a bite out of the recycling problem? 2021-07-01T04:00:00Z The macroscopic domain includes everyday and laboratory chemistry, where we observe and measure physical and chemical properties such as density, solubility, and flammability. Chemistry 2019-02-14T00:00:00Z He then devised mathematical methods to measure the atomic responses and determine their chemical properties. Richard Ernst, Nobel laureate whose research made MRI possible, dies at 87 2021-06-09T04:00:00Z The periodic table groups elements according to chemical properties. Biology for AP Courses 2022-06-09T00:00:00Z Wise also noted that foods can mentally have an aphrodisiac effect, regardless of their actual chemical properties, because they look like things that reminds us of sex — in other words, acting as subtle psychological hints. The science behind aphrodisiacs 2021-02-14T05:00:00Z That thwarted their initial plans, to stack the einsteinium atoms into a crystal and then illuminate the element’s chemical properties by bombarding it with X-rays before examining the pattern of rays bouncing off. Einsteinium Is Mysterious. Scientists Have Unlocked Some of Its Secrets. 2021-02-07T05:00:00Z Examples of chemical properties include flammability, toxicity, acidity, and many other types of reactivity. Chemistry 2019-02-14T00:00:00Z They tried sectioning this tire cocktail into different chemical properties, such as removing all metals from the solution. Scientists solve mystery of mass coho salmon deaths. The killer? A chemical from car tires 2020-12-03T05:00:00Z As a consequence of their chemical properties, they don’t often aggregate as rare earth minerals in such a way that they are easy to extract. Mining Rare-Earth Elements from...Fossilized Fish??? 2020-09-21T04:00:00Z Research antibodies are designed to recognize and bind to specific proteins according to their shape and chemical properties.Credit: When antibodies mislead: the quest for validation 2020-09-06T04:00:00Z What is new about this proposal is that it combines a physical cause—cosmic rays—with a chemical property of living molecules—helical structures—to affect the way primitive life evolved. Cosmic Rays and the Handedness of Life 2020-07-22T04:00:00Z The similarity in chemical properties among elements of the same group occurs because they have the same number of valence electrons. Chemistry 2019-02-14T00:00:00Z Researchers have found a way to tame the repulsive smell while keeping their valuable chemical properties. Daily briefing: Why protests haven’t lead to a surge in COVID-19 2020-06-23T04:00:00Z Meyer’s elements, arranged mostly by increasing weight, were also lined up according to their common chemical properties, which repeated at regular intervals. The Histories Hidden in the Periodic Table 2019-12-27T05:00:00Z While white phosphorus has toxic chemical properties, it is not generally used to poison or asphyxiate, the common aim of chemical weapons. Ilhan Omar writes to US Syria envoy over Turkish white phosphorus allegations 2019-12-18T05:00:00Z The wettability of a solid surface for a particular liquid is determined by the chemical properties of the materials involved. Droplet motion electrically controlled 2019-08-20T04:00:00Z However, there are also other patterns in chemical properties on the periodic table. Chemistry 2019-02-14T00:00:00Z The dense liquid provides lots of target nuclei, and its chemical properties enable electrons to drift long distances. Resurrected detector will hunt for some of the strangest particles in the universe 2019-08-08T04:00:00Z Positioning an element in the periodic table requires establishing its atomic weight and chemical properties. Celebrate the women behind the periodic table 2019-01-27T05:00:00Z Remoroza manages a library of biological sugars, which she scans for molecules with unique chemical properties. Got gorilla milk? Inside America’s largest stockpile of exotic milks 2018-12-24T05:00:00Z This involves lab science, such as on chemical properties and atmospheric fluxes of pollutants, as well as monitoring activities in the field. Why a European agency post can be an excellent destination for researchers 2018-11-06T05:00:00Z The chemical properties of bromine are similar to those of chlorine, although bromine is the weaker oxidizing agent and its reactivity is less than that of chlorine. Chemistry 2019-02-14T00:00:00Z Obtaining proof that some stars are associated with a merger required the high precision and large survey area of Gaia, in combination with large databases of the spectral and chemical properties of stars. Evidence of ancient Milky Way merger 2018-10-30T04:00:00Z Another testing method, the Bruker Alpha machine, uses infrared light to pinpoint the various chemical properties of a substance. $1 Fentanyl Test Strip Could Be a Major Weapon against Opioid ODs 2018-03-08T05:00:00Z By exploiting the molecules’ different chemical properties, the researchers were able to dissolve one type in the main liquid and the other in the droplets. A shortcut for building a complex molecule 2018-02-04T05:00:00Z It’s like writing an essay on the morality of nuclear weapons and spending most of it parsing the chemical properties of plutonium. With Laura Poitras' re-cut 'Risk,' a director controversially changes her mind about Julian Assange 2017-05-06T04:00:00Z However, the group 12 elements do display some of the same chemical properties and are commonly included in discussions of transition metals. Chemistry 2019-02-14T00:00:00Z Isotopes are forms of an element that have different atomic masses but retain similar chemical properties. John D. Roberts Dies at 98; He Revolutionized the Field of Organic Chemistry 2016-11-06T04:00:00Z Its widespread abuse stems not so much from its chemical properties as from the international regulations governing the drug. Tramadol: The Opioid Crisis for the Rest of the World 2016-10-19T04:00:00Z The powerful impacts brought more water to the surface and exhumed underground minerals with unique chemical properties. NASA’s Bold Plan to Hunt for Fossils on Mars “Given the availability and its chemical properties, it is a good guess that carbon may often be the key species that provides the backbone, the molecular scaffolding, for biomolecules,” says Apai. What ‘Star Trek’ May Have Right—and Wrong—About Alien Life 2016-09-30T04:00:00Z A macroscopic sample of an element contains an incredibly large number of atoms, all of which have identical chemical properties. Chemistry 2019-02-14T00:00:00Z Everyone will endorse some tests, such as those for physical chemical properties. Rethink how chemical hazards are tested 2016-08-15T04:00:00Z The Seattle meeting aims to compile a working list of biosignature gases and their chemical properties. Planet hunters seek new ways to detect alien life 2016-07-26T04:00:00Z They researched shortages in the liver transplant program, worked with Children’s Mercy Hospital in learning about a liver’s cells and chemical properties and wrote up code for their school’s new 3-D printer. Librarians fear for what’s being lost as they transition 2016-07-01T04:00:00Z Unfortunately, alternatives to distillation, such as separating molecules according to their chemical properties or size, are underdeveloped or expensive to scale up. Seven chemical separations to change the world 2016-04-25T04:00:00Z Note that this small difference in the arrangement of the atoms has a major effect on their respective chemical properties. Chemistry 2019-02-14T00:00:00Z The periodic table is a tabular arrangement of the chemical elements, organised on the basis of their atomic numbers, electron configurations, and recurring chemical properties. Crypto-challenge: the answers - BBC News 2016-04-03T04:00:00Z Michigan officials were supposed to make sure Flint had adjusted its treatment methods to match the river water, which had different chemical properties than the water from Lake Huron. Could What Happened in Flint Happen Anywhere? In fact, the Viking mission scientists called Mars “self-sterilizing,” describing how the combination of the sun’s UV rays and the chemical properties of the soil prevented life from forming in those soils, according to NASA. How Our View of Mars Has Changed from Lush Oasis to Arid Desert 2015-10-01T04:00:00Z The isomers of xylene are molecules with slight structural differences from each other that lead to different chemical properties. Seven chemical separations to change the world 2016-04-25T04:00:00Z All have advantages and disadvantages, and all depend on the physical and chemical properties of caffeine. Chemistry 2019-02-14T00:00:00Z We catalog their physical and chemical properties and study how small bodies in the solar system form and evolve. Talking science and God with the pope's new chief astronomer 2015-09-29T04:00:00Z As governments relax cannabis laws, commercial growers want more clarity about the chemical properties and capabilities of the herb's many varieties. Botany: The cultivation of weed : Nature : Nature Publishing Group 2015-09-22T04:00:00Z An atom’s chemical properties are determined by its electrons, which interact with those of other atoms. Drugs that live long will prosper 2015-09-03T04:00:00Z The researchers analyzed slices from fossil teeth using a powerful microscope and a sophisticated device that revealed tooth chemical properties. Toothy terror: dinosaurs like T. rex had unique serrated teeth 2015-07-28T04:00:00Z To denote this distinct chemical property, a mixture of water with an acid is given a name derived from the compound’s name. Chemistry 2019-02-14T00:00:00Z To do a better job and improve the climate models, scientists simply need more direct observations of the aerosols’ physical and chemical properties as well as those of the clouds themselves, he says. Tiny sea creatures are making clouds over the Southern Ocean 2015-07-17T04:00:00Z Each one has its own unique chemical properties and particular effects. All 'Smiles': the history of the 2C designer drug class 2015-07-15T04:00:00Z The positively-charged protons determine the chemical properties of the atom - how it bonds with other atoms - and therefore what element it is. The element that can make bones glow - BBC News 2015-05-29T04:00:00Z The cadavers are made from materials that mimic the mechanical, thermal and chemical properties of live tissue. College buys fake bodies for anatomy, physiology courses 2015-05-08T04:00:00Z Elements in the same group of the periodic table have similar chemical properties. Chemistry 2019-02-14T00:00:00Z Water is essential for life on Earth and many believe that, because of its peculiar chemical properties, this will be true anywhere else that harbours living things. Harvest festival 2015-02-26T05:00:00Z Corning invented fiber optics and the Gorilla Glass that covers most of our smartphones, so it already has a great store of data about glass chemical properties and manufacturing processes. Tech Giants Have a Few New Tricks for Stomping Startups By creating additional fistulas along the digestive system and collecting the various secretions, he could measure their quantity and chemical properties in great detail. How Everyone Gets Pavlov Wrong 2014-11-17T05:00:00Z More versatile synthesis workstations are too expensive for most academic groups — costing from £30,000 to more than £500,000 — and still tend to produce molecules with a narrow range of chemical properties. Organic synthesis: The robo-chemist 2014-08-05T04:00:00Z The specific arrangement of electrons in orbitals of an atom determines many of the chemical properties of that atom. Chemistry 2019-02-14T00:00:00Z In fact, their physical and chemical properties may not be fully understood. FDA's Looming Decision On Generic Copaxone From Teva Reveals Drug Approval Woes 2014-07-07T04:00:00Z Then, when the James Webb Space Telescope is launched in 2018, it will serve as the fine-toothed comb that measures the physical and chemical properties of those planets to assess the potential for life. Earth-size, ‘Goldilocks-zone’ planet found in distant solar system 2014-04-17T18:08:59Z Has anyone shown a model that exhibits properties of self awareness and qualitative experience from chemical properties? What Are Some Concise Ways To Convince People That Consciousness Is Not An Emergent Property? 2014-04-16T16:35:00Z Oceans are also displaying changes in physical and chemical properties that, in turn, are affecting coastal and marine ecosystems such as coral reefs, and other oceanic organisms such as mollusks, crustaceans, fishes, and zooplankton. Dot Earth Blog: U.N. Climate Report Authors Answer 11 Basic Questions 2014-03-31T21:16:45Z Neutral atoms and their associated ions have very different physical and chemical properties. Chemistry 2019-02-14T00:00:00Z Turning the drug into an injection depended on its chemical properties. Long-acting Shot Prevents Infection with HIV-Like Virus 2014-03-04T19:55:00Z The periodic system has two levels of classification: a primary level, based on atomic numbers of the elements, and a secondary one, based on chemical properties. Readers Respond to "Quantum Weirdness" 2013-09-21T11:15:00.690Z Later, due to its popularity, they broadened the series out to talk about everything from slow-motion musket firing to the chemical properties of caffeine. YouTube UK: 20 of Britain's most popular online video bloggers 2013-04-06T23:01:00Z The physical and chemical properties of oil products change as they are exposed to the open environment in a process known as weathering. Will Canada s Proposed Tar Sands Oil Pipeline Muck Up Its Pacific Coast? 2013-03-05T18:45:09.870Z But he emphasizes that he is most interested in understanding the metabolite's chemical properties. Bacteria Found to Thrive on Gold 2013-02-04T17:15:06.787Z But there's no single shape or simple chemical property that sulfur universally confers to every kind of odorant molecule. Study Bolsters Quantum Vibration Scent Theory 2013-01-28T08:45:00.193Z A carbonisation process then follows in huge furnaces, where all non-carbon molecules are removed while the chemical properties of the remaining carbon molecules are changed to help them bond better, thus making the carbon strong. Knitting and baking the cars of the future 2012-12-23T17:51:16Z First, the name “bath salts” doesn’t refer to any single drug, but rather a group of substances with similar chemical properties. The Straight Dope on What Bath Salts Do to Your Brain and Why They're Dangerous 2012-06-05T06:38:38Z The white and red corpuscles and other chemical properties would have been found in it. The Eliminator; or, Skeleton Keys to Sacerdotal Secrets 2012-03-27T02:00:23.077Z The large amount of attention bestowed upon the chemical properties of metals, and the scientific methods adopted for their investigation, have led to the most brilliant results in the history of iron and steel industries. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Manifestly, as a preliminary step, "it was needful to specify and illustrate these general facts; and needful also to set forth those physical and chemical properties of organic matter which are implied in the interpretation." Herbert Spencer 2012-02-29T03:00:20.773Z Not only is it changed physically, but there is a change in chemical properties, and yet no chemist can tell in what the change consists. Donahoe's Magazine, Volume XV, No. 3 Volume XV (Jan 1886-Jul 1886) 2012-01-23T03:00:12.223Z Homogeneous solid matter, the physical and chemical properties of which are the same about every point, may be either amorphous or crystalline. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z Mico-Spar Cubical Grit is a hard mineral product containing sodium, aluminum, magnesium, lime and iron, natural chemical properties which every poultry raiser knows are necessary to produce paying hens. Natural and Artificial Duck Culture 2012-01-04T03:00:33.923Z To shew that Newton was thoroughly ignorant of the chemical properties of matter, I will quote again a paragraph, which I quoted in page 341, Vol. An Address to Men of Science Calling Upon Them to Stand Forward and Vindicate the Truth.... 2011-12-24T03:08:05.883Z They use the example of earthworms which change the physical and chemical properties of the soil. The New Meanings of How and Why in Biology? 2011-12-15T22:45:05.853Z Some are divided among its different kinds, as rigidity, fluidity, elasticity, electricity, magnetism, chemical properties. Schopenhauer 2011-12-14T03:00:15.367Z An equal number of equivalents of chlorine takes the place of the hydrogen so eliminated; thus the physical and chemical properties of the original substance are not profoundly changed. Heroes of Science Chemists 2011-12-09T03:00:21.047Z Now, spurred by genomic research, cancer specialists are beginning to understand the physical and chemical properties that predict which drugs will break through the blood-brain barrier. The Latest Brain Discoveries From Alzheimer's to Autism to Stroke 2011-12-07T15:30:00Z As to its chemical properties, it is found by analysis to consist of 900 parts of water, 60 of animal muscilage, 10 of soda, 30 of phosphate of lime. Fruits of Philosophy A Treatise on the Population Question 2011-12-03T03:00:10.910Z Abrams' method has revealed the secret of such efficacy as drugs possess—their work is done by their radio-activity, and not by their chemical properties. The Book of Life 2011-11-25T03:00:13.343Z The value of food or remedial agents consists in their adaptation to assimilation; in other words, an absence of chemical properties. The American Reformed Cattle Doctor 2011-11-14T03:00:19.813Z When an atom of a compound is divided the smaller particles so produced are each very different in chemical properties from the atom which has just been divided. Heroes of Science Chemists 2011-12-09T03:00:21.047Z Chemistry.—In its chemical properties glucose is a typical oxyaldehyde or aldose. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Standards of Thermal Efficiency.—To set up an absolute standard of thermal efficiency it is necessary to know in a complete manner the physical and chemical properties and occurrences in a gaseous explosion. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z His team is also running its own calculations, looking at simple structural and chemical properties. Hunt for Solar Technology Identifies Best-Yet Organic Semiconducting Molecule 2011-08-16T20:45:10.317Z It is not easy or even possible to discuss the chemical properties of substances without the use 112 of chemical terms. Household Administration Its Place in the Higher Education of Women 2011-07-20T02:00:13.547Z The distinctions between the physical and the chemical properties of bodies are confessedly artificial. The Gospel Of Evolution From "The Atheistic Platform", Twelve Lectures 2011-05-31T02:00:36.420Z Sound, we know, is carried by the air, a medium more subtle than solid or liquid bodies, but still easily recognizable by its effects on our senses, and by its mechanical, physical, and chemical properties. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z Connecting the experimental study of the physical and chemical properties is the immense theoretical edifice termed the kinetic theory of gases. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z On reaching the electrodes the ions give up their charges, and immediately exhibit their ordinary chemical properties. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z Substances are classified for chemical purposes in groups, every member of which exhibits the same chemical property, and we shall require to distinguish between the group called acids and the group called alkalies. Household Administration Its Place in the Higher Education of Women 2011-07-20T02:00:13.547Z It must not be forgotten that the chemical properties of the fibre substances are modified more or less by association in combination with colouring matters and mordants. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 3 "Fenton, Edward" to "Finistere" 2011-03-14T03:01:00.580Z The Rate of Cure or Rate of Vulcanisation is subject to more exact measurement, whether this be based on the physical or the chemical properties of the rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z "Nobody really knew anything about how the body worked or the chemical properties of these substances," said Mark J. Schiefsky, a professor of classics at Harvard University. Ship wreck reveals ancient secrets of medicine 2011-01-31T22:31:01Z The ions exhibit none of the chemical properties of the uncharged radicle. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z Alkalies have another well-known chemical property—they dissolve grease and oil and enable them to mix with water. Household Administration Its Place in the Higher Education of Women 2011-07-20T02:00:13.547Z The term “periodic” reflects the fact that the elements show patterns in their chemical properties in certain regular intervals. The Evolution of the Periodic System 2011-01-21T23:45:05.210Z Moreover, apart from some differences caused by factors which still need determination, the total product in a general sense should not only be uniform in appearance but uniform in physical and chemical properties. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z "We don't yet know why this particular composition works -- it will take a deeper investigation to find out what chemical properties have been altered that affect the material's toughness," Demetriou says. Glassy Metal Set to Rival Steel 2011-01-10T02:45:03.017Z Large-scale structures or discontinuities in Earth's interior are typically caused by transformations in the physical or chemical properties of minerals that occur when pressure increases with depth. This Week in Science 2011-01-06T19:25:00.633Z A blacksmith who knew all the physical and chemical properties and relations of iron and steel would be quite a scientific philosopher. The Scientific Basis of National Progress Including that of Morality 2010-12-30T03:00:25.567Z Fortunately, the periodic table allows chemists to function by mastering the properties of a handful of typical elements; all the others fall into so-called groups or families with similar chemical properties. The Evolution of the Periodic System 2011-01-21T23:45:05.210Z There must always be some marked physical or chemical affinity existing between fibre and colouring matter, and this depends upon the physical and chemical properties of both. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Arsenic sits right beneath phosphorus in the periodic table of the elements and shares many of its chemical properties. With Arsenic-Eating Microbe, New Thinking on What Constitutes Life 2010-12-02T17:53:00Z Silver and palladium differ in their chemical properties. Silver Tells a Story of Early Earth: Water Here Since Planet's Very Early Days 2010-05-17T21:44:00Z A UV-light treatment system is located in the pool recirculation piping to break down the chemical properties of chloramines, helping to eliminate the amount of chloramines in the water, and ultimately, in the air. 2008-08-13T18:23:00Z Döbereiner’s work encouraged others to search for correlations between the chemical properties of the elements and their atomic weights. The Evolution of the Periodic System 2011-01-21T23:45:05.210Z The name alcohol is applied generally in chemistry to a large group of substances, containing carbon, hydrogen, and oxygen, which have chemical properties analogous to those of ethyl alcohol. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide The falling rain washes the decaying leaves, and in doing so borrows from them certain chemical properties, charged with which the water sinks into the limestone beds. Under the Southern Cross or Travels in Australia, Tasmania, New Zealand, Samoa, and Other Pacific Islands This material, becoming duly decomposed, imparts its rich chemical properties to the soil, and thus repays the laborer tenfold. The Story of Malta This word was intended to designate compounds which contain the same number of atoms of the same elements but combined in different manners, thereby explaining their different chemical properties and crystal forms. History of Phosphorus Variations in the Blood of different Animals.—If we contrast the blood of different animals of the vertebrate class we find striking differences both in microscopic appearances and in chemical properties. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" They resemble starch in chemical properties, but differ from it in physical form, etc. The Chemistry of Plant Life What we may call the special cellulose industries depend upon specific chemical properties of cellulose, partly intrinsic, partly belonging to the derivatives such as the esters. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" It is similar in chemical properties to barium. A Brief Account of Radio-activity A more careful study of the physical as well as the chemical properties of a soil must precede intelligent experimentation in rotation. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 5 "Cosway" to "Coucy" Let us consider, for instance, the marvellous range and diversity of the characteristic chemical properties and interrelations of substances. Naturalism And Religion From this small amount, enough of the chemical properties of the element were learned to permit correct design of the huge plutonium-recovery plant at Hanford, Washington. A Brief History of Element Discovery, Synthesis, and Analysis Isomorphism is most clearly discerned between elements of analogous chemical properties; and from the wide generality of such observations attempts have been made to form a classification of elements based on isomorphous replacements. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" This activity is due to the presence of a very small proportion of an active constituent called radio-lead, which has chemical properties identical with those of ordinary lead. A Brief Account of Radio-activity But the incapacity to enter into chemical combinations seems very paradoxical; indeed it is almost like saying that these are chemical elements which lack the most fundamental of chemical properties. A History of Science, Volume 5(of 5) Aspects Of Recent Science Angelico, in using its leaves mixed with daisies in the foreground of his Crucifixion had, I imagine, a view also to its chemical property. Modern Painters Volume I (of V) As specific cellular secretions, various kinds of granules must also be sharply marked off from each other by their chemical properties. Histology of the Blood Normal and Pathological "Have it—yes, if we could get it; but I am ignorant of any but the chemical properties of milk and sugar." Say and Seal, Volume II Of course, knowledge of the physical and chemical properties is also of great importance whenever obtainable. A Brief Account of Radio-activity The juice of these leaves possesses a chemical property which I cannot explain but it draws up to the surface the sand still sticking to the metals, leaving them quite pure. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) Fuller's earths are in general higher in water content and have less plasticity than most clays, but they vary widely in physical and chemical properties. The Economic Aspect of Geology In order that we may see how this effect is produced, we must examine the chemical properties of the air. Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease The chief chemical properties of the atmosphere are owing to the presence of oxygen. Popular Education For the use of Parents and Teachers, and for Young Persons of Both Sexes This kind of eruption is likewise frequently cured by testaceous powders; two materials so widely different in their chemical properties, but agreeing in their power of promoting cutaneous absorption. Zoonomia, Vol. II Or, the Laws of Organic Life But in considering the chemical properties of a soil, a simple consideration of the quantity of the different ingredients present is not enough. Manures and the principles of manuring So when salt or sugar is diffused in water, it is termed solution, and not combination; as no change of their chemical properties succeeds. The Temple of Nature; or, the Origin of Society A Poem, with Philosophical Notes By the action of digestion, the food is not merely reduced to very minute parts, but its chemical properties become changed; its sensible properties are destroyed, and it acquires new and very different ones. Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease Dr. Liebig recognised, in the known chemical properties of the oxides of iron, laws which, if followed out deductively, would lead to the prediction of the precise series of phenomena which respiration exhibits. A System Of Logic, Ratiocinative And Inductive (Vol. 1 of 2) And thirdly, because the great use of lime in agriculture on almost all kinds of soil and situation cannot be satisfactorily explained from its chemical properties alone. Zoonomia, Vol. II Or, the Laws of Organic Life Nor will he trouble himself with Cennino's list of colours, though it would perhaps be better for him if he did enter a little into their chemical properties. Blackwood's Edinburgh Magazine, Volume 57, No. 357, June, 1845 Mixing of Soils.—When soils possess conspicuous defects in their physical, and even in their chemical properties, great advantages may, in some instances, be derived from their proper admixture. Elements of Agricultural Chemistry All these vary more in colour than in their chemical properties. The Chemistry, Properties and Tests of Precious Stones Anger changes the chemical properties of the saliva to a poison dangerous to life. In Tune with the Infinite or, Fullness of Peace, Power, and Plenty His selection of blue glass as a medium was probably based upon the theory that the blue ray of the solar spectrum possesses superior actinic or chemical properties. Primitive Psycho-Therapy and Quackery Owing to its active chemical properties this product—'dextron'—has a limited capability of substituting dextrin. Researches on Cellulose 1895-1900 Its chemical properties are similar to those of oxygen except that it is far more active. An Elementary Study of Chemistry It has certain chemical properties, which need not be described, which allow a skilled Page 13 chemist to distinguish it without difficulty and unerringly from the other known elements—nearly 100 of them. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel In its chemical properties it closely resembles barium and strontium, and to some degree magnesium; these four elements comprise the so-called metals of the "alkaline earths." Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Its chemical properties are in general intermediate between those of chlorine and iodine; thus it requires the presence of a catalytic agent, or a fairly high temperature, to bring about its union with hydrogen. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" It is a thread of high lustre, and more nearly approaches the normal cellulose in chemical properties than any of the other artificial silks. Researches on Cellulose 1895-1900 In the one series the iron is divalent and forms compounds which in formulas and many chemical properties are similar to the corresponding zinc compounds. An Elementary Study of Chemistry Millions and millions of atoms of oxygen, each with the same velocity of movement, same weight and chemical properties. The Arena Volume 4, No. 19, June, 1891 This is the chief caoutchouc-plant, and its sap has not only the colour, but many of the chemical properties of animal milk, and is frequently drunk as food. Chambers's Edinburgh Journal, No. 437 Volume 17, New Series, May 15, 1852 Similar explanations of physical and chemical properties are found in the earliest and in some of the most recent philosophers. The Age of the Reformation Nature of Oxygen.—To understand the relation which oxygen sustains to the body we must acquaint ourselves with certain of its chemical properties. Physiology and Hygiene for Secondary Schools The chemical properties of the members of a family are quite similar. An Elementary Study of Chemistry In considering what is and what is not a good slag, certain chemical properties are of importance. A Text-book of Assaying: For the Use of Those Connected with Mines. Here are several well-known mineral springs, with chemical properties similar to the springs of Saratoga. The Hudson Three Centuries of History, Romance and Invention Many chemical properties can only be so expressed; many primary facts, such as the distances, the volumes, the weights of heavenly bodies; and yet the approximations serve our purpose. The Relations Between Religion and Science Eight Lectures Preached Before the University of Oxford in the Year 1884 The gas is liberated at about the rate of two liters per hour, and has very powerful chemical properties. Scientific American Supplement, No. 633, February 18, 1888 While this acid has the same composition as metastannic acid, the two are quite different in their chemical properties. An Elementary Study of Chemistry Nickel and cobalt are closely related in their chemical properties, and may best be considered together. A Text-book of Assaying: For the Use of Those Connected with Mines. Zinc and aluminum are metals very much like iron in chemical properties, but all their salts are colorless. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries By the term chemical properties we have reference to the chemical composition of the soil, the chemical changes which take place in the soil, and the conditions which influence these changes. The First Book of Farming We must note that such ionisation may be regarded as conferring potential chemical properties upon the molecules of the gas and upon the substance whence the electrons are derived. The Birth-Time of the World and Other Scientific Essays Since the metallurgy of the three elements is so similar, however, and since they resemble each other so closely in chemical properties, it is convenient to class them together for study. An Elementary Study of Chemistry Phosphorus and arsenic closely resemble each other in their chemical properties, more especially those which the assayer makes use of for their determination. A Text-book of Assaying: For the Use of Those Connected with Mines. It was a natural conception, therefore, that protoplasm was a complex chemical compound, and that its vital properties were simply the chemical properties resulting from its composition. 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 "How very remarkable!" observed Aunt Charlotte, as she gazed at the tabulated figures and enumeration of chemical properties in bewildered awe. Austin and His Friends There is also a valuable outline of study for teachers taking up the chemical properties of food, and the physiological functions of digestion, absorption, nutrition, etc. Carving and Serving In general, it may be stated that the members of an homologous series show a regular gradation in most physical properties and are similar in chemical properties. An Elementary Study of Chemistry We may suppose that the presence of this charge brings about modifications as extensive as one pleases in the chemical properties of the atom. The New Physics and Its Evolution Irritability, movement, metabolism, and reproduction appear to be not chemical properties of a compound, but mechanical properties of a machine. 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 Between these condensed compounds and the pure elements the continuous transition of the physical and chemical properties is often effected by insensible degrees, by a mixture of definite compounds. Scientific American Supplement, No. 832, December 12, 1891 This hope was especially entertained with respect to the gases, because of their high degree of insulation, their uniformity in physical condition, and great difference in chemical properties. Experimental Researches in Electricity, Volume 1 Each of the three elements, silicon, titanium, and boron, belongs to a separate periodic family, but they occur near together in the periodic grouping and are very similar in both physical and chemical properties. An Elementary Study of Chemistry The world is just awakening and far more inquiry will now be made in the future as to the chemical properties of food, and also as to its necessary quantity and calorific value. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration In any picture that he paints, he understands the chemical properties of all his colors. The Function of the Poet and Other Essays There are earth-like substances which exhibit no differences of chemical properties, and yet show minute differences in the characters of the light which they emit when they are raised to a very high temperature. The Story of Alchemy and the Beginnings of Chemistry The style of handwriting, the texture and quality of the paper, and the chemical properties of the inks, are points which are necessary to be considered. Disputed Handwriting An exhaustive, valuable, and comprehensive work upon one of the most important subjects of to-day. With illustrations and expositions for the detection and study of forgery by handwriting of all kinds Sulphuric acid possesses chemical properties which make it one of the most important of chemical substances. An Elementary Study of Chemistry The envelope is composed of a rubber-texture fabric, and externally it is painted yellow, so that the chemical properties of the sun's rays may not injure the rubber. The Mastery of the Air Finally, the chemical properties of carbon, hydrogen and oxygen are equally unique and unreplaceable. The Evolution of Man Scientifically Disproved In 50 Arguments In chemistry Mendeleéff formulated the theory relating to atoms and their chemical properties and relations, not then discovered to be the law by which they were governed, as later experiments proved. Handbook of Universal Literature From the Best and Latest Authorities The properties of the vitamines may therefore be grouped under two heads: first chemical properties and second physiological properties. The Vitamine Manual Hydrobromic acid very strikingly resembles hydrochloric acid in physical and chemical properties. An Elementary Study of Chemistry It probably resembles in its chemical properties birdlime, the vegetable principle obtained from the berries of the mistletoe, and the internal bark of the holly. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 We have already mentioned that the same chemical properties being sometimes found in the same organs of different families of plants, these families supply each other's places in various climates. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 A great many substances have been discovered amongst organic bodies, composed of the same elements in the same relative proportions, and yet exhibiting physical and chemical properties perfectly distinct one from another. Familiar Letters on Chemistry On the other hand, there are effects dependent upon physical or chemical properties for the determination of which no drawings will be of any use. On the Economy of Machinery and Manufactures The most important chemical properties of nitric acid are the following. An Elementary Study of Chemistry As for the glue itself, it is hardly possible to study its chemical properties, because the quantity is so slight. The Wonders of Instinct Chapters in the Psychology of Insects We could not find this shrub in flower, or bearing fruit; it appears to belong to the family of the leguminous plants, the chemical properties of which are singularly varied. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 This choice is apparently dictated by the fact that the chemical properties of the former are more likely to produce a solid structure. The Mason-Bees In any picture that he paints he understands the chemical properties of all his colors. The Works of Edgar Allan Poe — Volume 1 The individual chemical properties of the iron and zinc have therefore marked influence upon the point at which equilibrium will be reached. An Elementary Study of Chemistry We cannot as yet form an opinion as to how far the effect is due to the wound or to the injection of fluid as such, or to its chemical properties. Darwin and Modern Science As for the glue itself, it is hardly possible to study its chemical properties, because the quantity is so slight. The Life of the Spider But even more important than his discoveries of chemical properties in general was his discovery of the properties of carbonic-acid gas. A History of Science — Volume 4 The most important chemical properties of hydrosulphuric acid are the following: 1. An Elementary Study of Chemistry A comparison of the formulas and the chemical properties of corresponding compounds of oxygen and sulphur brings to light many striking similarities. An Elementary Study of Chemistry At present we wish to emphasise the fact that, as in other cases, the radio-activity of the emanation is accompanied by the appearance of a new kind of substance with distinct chemical properties. Darwin and Modern Science On the other hand, oxygen and sulphur, while quite different physically, have much in common in their chemical properties. An Elementary Study of Chemistry In both physical and chemical properties titanium resembles silicon, though it is somewhat more metallic in character. An Elementary Study of Chemistry The most important chemical properties of hydrochloric acid are the following: 1. An Elementary Study of Chemistry Since the ions are usually more active chemically than the molecules, most of the chemical properties of an electrolyte are due to the ions rather than to the molecules. An Elementary Study of Chemistry Radium resembles barium in its chemical properties, and is precipitated with barium in the ordinary course of chemical analysis. Darwin and Modern Science They not only have formulas similar to the ferrous salts, but resemble them in many of their chemical properties. An Elementary Study of Chemistry The same general gradation is also found in their chemical properties, phosphorus being an acid-forming element, while bismuth is essentially a metal. An Elementary Study of Chemistry In chemical properties antimony resembles arsenic in many particulars. An Elementary Study of Chemistry The electrical charge, therefore, greatly modifies the usual chemical properties of the element. An Elementary Study of Chemistry The salt is very similar to sodium chloride both in physical and chemical properties. An Elementary Study of Chemistry |
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