| 单词 | ethene |
| 例句 | Each carbon atom in ethene, commonly called ethylene, has a trigonal planar structure. Chemistry 2019-02-14T00:00:00Z The hydrocarbons ethane, ethene, and ethyne serve as examples of how different carbon-to-carbon bonds affect the geometry of the molecule. Biology for AP Courses 2022-06-09T00:00:00Z Chemical plants break down long hydrocarbon molecules in crude to produce a smorgasbord of smaller molecules, such as ethene, propene and benzene — all important precursors to polymers. How fracking Is upending the chemical industry 2017-10-03T04:00:00Z Global annual production of ethene and propene exceeds 200 million tonnes, about 30 kilograms for each person on the planet. Seven chemical separations to change the world 2016-04-25T04:00:00Z You end up with ethene, which is also known as ethylene. Solving The Super Weird Chemical Mystery Of Powdered Alcohol Drinks 2015-03-13T04:00:00Z The Lewis structure of ethene, C2H4, shows us that each carbon atom is surrounded by one other carbon atom and two hydrogen atoms. Chemistry 2019-02-14T00:00:00Z Double bonds, like those found in ethene cannot rotate, so the atoms on either side are locked in place. Biology for AP Courses 2022-06-09T00:00:00Z So voracious is the world's appetite for these plastics that the chemical industry produces roughly 150 million tonnes of ethene every year, more than any other chemical building block. How fracking Is upending the chemical industry 2017-10-03T04:00:00Z In an ethene molecule, the four hydrogen atoms and the two carbon atoms are all in the same plane. Chemistry 2019-02-14T00:00:00Z One of those building blocks is propene, arguably the second most important product of the chemical industry after ethene. How fracking Is upending the chemical industry 2017-10-03T04:00:00Z The planar configuration for the ethene molecule occurs because it is the most stable bonding arrangement. Chemistry 2019-02-14T00:00:00Z But when they are supplied with ethane, the output is almost entirely ethene. How fracking Is upending the chemical industry 2017-10-03T04:00:00Z |
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