Water is a compound___ the elements hydrogen and oxygen. (contain) 相关知识点: 试题来源: 解析 答案:containing.所给词contain的意思是"包含;含有",及物动词,本句为主系表结构,设空处应用非谓语动词作定语修饰compound,compound与contain之间为主动关系,应用现在分词形式,故填containing。结果一...
4. Water is a compound containing the elements (element) of hydrogen and oxygen. 相关知识点: 试题来源: 解析 答案见上4. elements〔提示:句意:水是含有氢元素和氧元素的化 合物。element n.元素。根据后面的hydrogen和oxygen 可知,应用复数形式,故填elements。) ...
Verb1.hydrogenate- combine or treat with or expose to hydrogen; add hydrogen to the molecule of (an unsaturated organic compound) alter,change,modify- cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "Th...
DStatement (1) is false and statement (2) is true Submit DOxygen Submit DProducer gas Submit Assertion : Water is regarded as a compound Reason : Hydrogen is a combustible gas and the oxygen is supporter of combustion, but water is a liquid which extinguishes fire. ...
(100 g, 0.85 mol) is added inportions over a 30-min period from a 200-mL round-bottomed flask connected to the reactionflask via a flexible plastic sleeve so as not to produce too vigorous an evolution of hydrogen.After the addition is complete, the plastic sleeve is replaced by a ...
A6 Hydrogen peroxide, H2O2, is a covalent compound. Hydrogen peroxide decomposes to form water and oxygen according to the equation:2H2O2(1)→2H2O(1)+O2(g)(a) The decomposition of hydrogen peroxide involves a change from the liquid state to the gaseous state Descnbe the difference in both...
Question 11An organic compound is known to contain only carbon, hydrogen and oxygen. The compound contains, by mass, 39.1% of carbon and 8.7% of hydrogen.The number of carbon atoms in the empirical formula is C A. 1 B. 2 C. 3 D. 4 ...
Hydrogenating the organicity nitrile compound which is chosen from the nitrile or the dinitrile of aliphatic or aromaticPROBLEM TO BE SOLVED: To provide a method for producing a hydride of an organic nitrile compound in supercritical carbon dioxide.川波 肇...
What compound is produced by the chemical reaction that occurs in a hydrogen-oxygen fuel cell?Fuel Cell:A fuel cell generates electricity cleanly and effectively by utilizing the chemical energy of hydrogen or other fuels. Electricity, water, and heat are the only by-produ...
1. Water is a compound containing(包含) the elements hydrogen and oxygen. 相关知识点: 试题来源: 解析 答案见上 结果一 题目 9. Water is a compound containing the elements hydrogen and o xygen. 答案 答案见上 结果二 题目 9 .Wate ri s acompoun dcontainin gth eelement shydroge nan do....