The main classifications of matter include the categories element and compound, either of which may also be called a substance (which is a less specific term), and mixture, of which there are also many sub-categories.Definition of a (Chemical) Mixture:...
2. Why should solutes be added to water rather than water added to solutes ? Explain why you are instructed to wash the collected crystals with distilled water instead of a water-methanol mixture. Explain why methyl alcohol is soluble in water in all proportions, while stea...
Although they’re talking about the same topic, the subject of each independent clause is different: The first clause’s subject isI, and the second clause’s subject isname. That’s part of what makes them independent, and a sentence is considered compound only when it consists of independen...
b.“what”belongstoacompoundrelativepronoun代表…“的”事；话；内容；东西；方向；情况；原因等WhatIhavesaid/dealtwith/covered/described/presented/treated:我所讲述的内容… e.g.●Thisdeviceiswhatweneed.译文:这个设备正是我们所需要的。●Therelativevelocitybetweenthetwoiswhatmakesthe...
8. According to the woman, what actually makes her job difficult? A. Difficult questions from interviewees. B. Embarrassing requests from interviewees. C. Lack of professional background. D. Lack of interviewing skills. 9. The woman uses all the following adjectives when talking about attending...
v. made (mād), mak·ing, makes v.tr. 1. To cause to exist or happen; bring about; create: made problems for us; making a commotion. 2. To bring into existence by shaping, modifying, or putting together material; construct: make a dress; made a stone wall. 3. To form by asse...
What ions are produced by each compound in aqueous solution? (a) KOH (b) LiNO3 (c) K2SO4 (d) (NH4)2SO4 Ions in Aqueous Solutions: The generation process of ions of water-soluble compounds is based on the dissociation reaction...
Another striking difference with the respect to the behavior of a polymer and that of a low molecular weight compound concerns the dissolution process. Let us take, for example, sodium chloride and add it slowly to a fixed quantity of water. The salt, which represents a low molecular weight ...
It’s also important not to make the common error of creating a run-on sentence, which is a compound sentence in which two independent clauses are incorrectly separated by just a comma: Incorrect: I work quickly, I check my work carefully. Run-on sentences can be corrected by either addin...
The silicone compound can also be diluted in solvent when used in anhydrous media. Application products Pulp, Textile, Oil & gas, Agrochemicals, Detergent, Water treatment Silicone antifoam in action Let’s follow the path of a bottle of plastic placed in a recycle bin. Once they arrive ...