Water is a compound c___ the elements of hydrogen and oxygen.(根据首字母单词拼写) 相关知识点: 试题来源: 解析 containing [解析] 考查非谓语动词。句意:水是一种含有氢和氧元素的化合物。根据句意以及首字母提示,空处应用动词contain,表示“包含,含有”,contain与逻辑主语compound之间是主动关系,所以空处...
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] ...
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,...
theconstituentsof a chemical compound ingredientapplies to any of the substances which when combined form a particular mixture. theingredientsof a cocktail Examples ofelementin a Sentence Water is composed of theelementshydrogen and oxygen.a free press is an essentialelementof a democracy ...
aA compound is a substance that can be split into two or more elements. Water is a compound because it can be split into its components, hydrogen and oxygen. 化合物是可以被分裂成两个或多个元素的物质。 因为它可以被分裂成它的组分、氢和氧气,水是化合物。 [translate] ...
Acompoundisasubstancethatcanbesplitintotwoormoreelements.Waterisacompoundbecauseitcanbesplitintoitscomponents,hydrogenandoxygen.Theformulaofacompoundgivesinformationaboutthekindsandnumbersofatomsthatmakeupeachmoleculeofthatcompound.Aformulacontainsthesymbolsofthekindsofatomintheeachmoleculeandsubscriptsthatindicatethe...
Learn basic information about what an element is, what they are made of, how and why they are different, and how scientists have organized them...
(a) What are the properties of elements and compounds? (b) How are properties of a compound related to elements that comprise it? Chemical Reactions: In a synthesis reaction, two or more substances called "reactants" combine to form a s...
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....