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...
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
The freezing point of a substance is when the substance turns from a liquid to a solid. The freezing point of a solvent can be decreased by adding a solute and making a solution, which is a freezing point depression. From knowing the temperature difference between a pure solvent and a mixt...
solvent2noun[countable, uncountable]achemicalthat is used todissolveanothersubstanceExamples from the Corpussolvent•His torturerspouredasolventdown hisnosethatburnedhisthroat.•Thesensitivitycan beimprovedandinterferencefrom otherionsdiminishedbyextractingthe redcolourwith asolvent.•But a few may becomehe...
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....
The particulate material may actually be soluble in the solvent; however, to form pores, it only has to be less soluble than the polymer in the solvent of choice. As the solvent is removed from the solution, the pore-forming material will precipitate out of solution and form particles ...
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...
In a solution prepared by dissolving CaCl2(s) in water, what is the solute, and what is the solvent? What is the component that is in a solution in smaller quantities? a. solution b. solvent c. solute d. none of the above What ...