In chemistry, a compound is a substance made up of two or more different chemicalelementscombined in a fixed ratio. When the elements come together, they react with each other and form chemical bonds that are difficult to break. These bonds form as a result of sharing or exchangingelectronsbe...
Investigate a special type of molecule called a compound. Discover what components determine compounds, learn how compounds fit under the umbrella of molecules, and explore common examples of compounds in daily life. Molecules or Compounds Chemistry is a really cool field of science, but it involv...
What is a compound in chemistry? What is sodium chloride used for? What is an insoluble salt? What does a dissolved salt look like? What metals are used to make salt? What is a pure compound? What is the compound formula of sodium nitrate?
What is a compound in chemistry? What is viscosity in physical chemistry? What are the principles of chemistry? What is plasma in nuclear chemistry? What is molar in chemistry? What are conformations in organic chemistry? What is stereochemistry in inorganic chemistry?
解析 - A compound is a material,in which atoms of different elements are chemically held to one another.- A mixture is a substance made by combining two or more different materials in such a way that no ch... 结果一 题目 AP chemistry (1)What are the main difference between a compound...
... in terms of Chemistry ? Matter can be classified in various ways according to its structure, behaviours and physical and chemical properties. The main classifications of matter include the categories element and compound, either of which may also be called a substance (which is a less speci...
A. consisted B. compounded C. composed D. conceived 相关知识点: 试题来源: 解析 C 句意:化学老师问学生们水是由什么组成的。be composed of 意为“由……构成”;而 consist 常用作 consist of,意为“由……构成”,一般不用于被动语态;compound 意为“复合的”;conceive 意为“设想,构思,认为”。
An ester is an organiccompoundwhere thehydrogenin the compound'scarboxyl groupis replaced with ahydrocarbongroup. Esters are derived from carboxylic acids and (usually) alcohol. While carboxylic acid has the -COOH group, the hydrogen is replaced by a hydrocarbon in an ester. The chemical formula...
Today, a mole isAvogadro's numberof particles, which is exactly 6.02214076×1023. For all practical purposes, the mass of one mole of a compound in grams is approximately equal to the mass of one molecule of the compound in daltons. ...
Atoms, molecules, compounds — chemistry can be confusing at first. However, it becomes easier once you learn the concepts behind the terminology. One of the most important ideas to understand is that of a chemical compound. Originally, the word "compound" meant "to put together" or "to joi...