Identify the following statements as being TRUE or FALSE. Circle your answer. a. Covalent bonds result when two atoms share their electrons. True/False b. Molecular formulas give the exact number of each element in a compound True/False In a solu...
英语翻译The solubility of a substance at a given temperature is defined as the concentration of the dissolved solute that is in equilibrium with the solvent.相关知识点: 试题来源: 解析 在一定温度下,某物质在溶剂中达到饱和状态时的浓度,叫做这种物质在这种溶剂中的溶解度.(既然是定义defined as ,我...
The substance that changes color in the presence of an acid or a base is called___. A. indicator B. reactor C. catalyst D. solvent 相关知识点: 试题来源: 解析 A。解析:在酸或碱存在时改变颜色的物质叫指示剂。选项 B 反应器不符合;选项 C 催化剂不改变颜色;选项 D 溶剂也不是变色的物质...
evaporator for the separation of a solvent, with the substance that it takes in solutionVAUCHE GUSTAVE
solvent2noun[countable, uncountable]achemicalthat is used todissolveanothersubstanceExamples from the Corpussolvent•His torturerspouredasolventdown hisnosethatburnedhisthroat.•Thesensitivitycan beimprovedandinterferencefrom otherionsdiminishedbyextractingthe redcolourwith asolvent.•But a few may becomehe...
3.a substance that dissolves another to form a solution:Water is a solvent for sugar. 4.something that solves or explains. [1620–30; < Latinsolvent-,s. ofsolvēns,present participle ofsolvereto loosen. Seesolve,-ent] sol′vent•ly,adv. ...
Use the following terms to fill in the blanks: | Solvent | Base | Hydrophilic | Hydrophobic | Buffer | pH | Acid | Solute 1. A substance that dissolves in a liquid is called ___. 2. A measure of hydrogen ion concentration in a solution is call Provide...
Solution chemistry is a necessary aspect of chemistry to understand how different solvents and solutes interact. It's important to understand what dissolves in water, because water is the universal solvent.Answer and Explanation: Become a member and unlock all Study Answers Start today....
element- one of four substances thought in ancient and medieval cosmology to constitute the physical universe; "the alchemists believed that there were four elements" medium- an intervening substance through which something is achieved; "the dissolving medium is called a solvent" ...
What is the meaning of “Unit Quantity”? “单位数量”的含义? The reference standard label and the reference standard catalogue (“Unit quantity” heading) declare the total amount of material (active substance and excipients, if any) that has been filled in each vial or ampoule; this informat...