A. sodium chloride B. potassium chloride C. calcium chloride D. magnesium chloride 相关知识点: 试题来源: 解析 A。食盐的主要成分是氯化钠,即 sodium chloride。选项 B 是氯化钾,选项 C 是氯化钙,选项 D 是氯化镁。所以答案是 sodium chloride。反馈...
Salt is a substance that () in water. A.dissolve easy B.dissolve easily C.dissolving very easy D.dissolves easily 相关知识点: 试题来源: 解析 D [名师精解] 表语substance 由that 引导的定语从句修饰,空格处需填从句的谓语,且 substance是单数,依据从句主谓一致原则,动词也应是单数。
Salt is a principal wicked substance. Salt, sodium chloride (氯化钠), 40 percent of which is sodium (钠), is an element essential to human body. But sodium also boosts blood pressure. It makes the body retain fluids; greater fluid retention increases total blood volume, and this increase ...
When salt is dissolved in water, it forms a solution. What do we call the substance that is dissolved (in this case, salt)? A. Solvent B. Solute C. Mixture D. Compound 相关知识点: 试题来源: 解析 B。解析:在溶液(solution)中,被溶解的物质叫做溶质(solute),这里盐是溶质。溶剂(solvent)...
aSchiff's base is crystal or oily substance, insoluble in water, soluble in organic solvents. They are weak alkaline, formed in an anhydrous salt and acid medium; Acid in water solution they are hydrolyzed to generate an amine and aldehyde. Most of the schiff's base is stable in alkaline...
CARBOXYMETHYLCELLULOSE SODIUM SALT is usually sold in powder form and needs to be dissolved in water and stirred until a gel-like substance is formed before use. It can be added in appropriate amounts to food, medications, or cosmetics, and stirred until well mixed. This is a brief ...
Salt is a principal wicked substance. Salt, sodium chloride (氯化钠), 40 percent of which is sodium (钠), is an element essential to human body. But sodium also boosts blood pressure. It makes the body retain fluids; greater fluid retention increases total blood volume, and this increase ...
Heterogeneous Mixtures- the (two or more) substances that form the mixture arenotevenly distributed throughout the mixture, e.g. oil and water. Solutions- special type ofhomogeneousmixtures in which one substance (called the 'solute') is dissolved in another substance (called the 'solvent'), ...
When a pure substance is present in a mixture, its properties are retained. There are no definite properties of a mixture. Their composition is variable. For example, table salt and black pepper are kept together in a bowl, salt in water, etc. ...
Step 4: Converting to pulp Filament yarns are chopped and mixed with water to form a fibrous substance called wet pulp. This wet pulp can be sold directly or dried to create and sell as dry pulp.Industries Applications where aramids are used Thanks to their high strength, heat resistance...