the elements of hydrogen and oxygen. 相关知识点: 试题来源: 解析 句意:水是一种含有氢和氧元素的化合物。根据句意结合首字母,考虑coantain"包含",分析句子可知,横线处作非谓语,逻辑主语compound与contain之间是主动关系,所以用动词的现在分词作后置定语。故填:containing。 水是一种含有氢和氧元素的化合物。反...
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。) ...
What is the origin of the oxygen we breathe, the hydrogen and oxygen (in form of water H2O) in rivers and oceans, the carbon in all organic compounds, the silicon in electronic hardware, the calcium in our bones, the iron in steel, silver and gold in jewels, the rare earths utilized,...
:any of the four substances air, water, fire, and earth formerly believed to compose the physical universe 2 :a constituent part: as a :any of more than 100 fundamental substances that consist of atoms of only one kind and that singly or in combination constitute all matter ...
Although accumulated at all trophic levels, there was no evidence for biomagnification of As on an entire organism basis. The As was shown to exist in selected organisms as a compound(s) which forms on hydrolysis, dimethylarsinate and traces of arsenate and methylarsonate....
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...
10 Organic compound D contains the elements carbon, hydrogen, oxygen and nitrogen only.(a) A sample of D was burned completely in the apparatus shown.Solid X absorbed the water formed in the combustion.Solid Y absorbed the carbon dioxide.compound D dry oxygen suction个heat solid X solid Y(...
2、in which more than one kinds of atoms are chemically combined together.nMixture (混合物) e.g. sea water An impure substance with more than one element or compound mixed together.Relative abundance (豐度) of different elements on the earths crust (地殼)List the 4 most abundant (豐富的)...
我位于紧挨小条。 不能等待遇见您![translate] afor you,a thousand times over,and than there is a way to be good again 为您,一千次,和比再有一个方式是好[translate] awater is a compound containing the elements of hydrogen and oxygen 水是包含氢和氧气的元素化合物[translate]...
2 The elements in Group 17 of the Periodic Table are called the halogens. They formstable compound with both metals and non-metals.The table gives some dat a about F_{2}, HCl and CaF_{2}$$ F _ { 2 } $$ HC CaF.boiling point/K 85 188 2773relative formul a mass 38.0 36.5 78....