美国高考SATII化学专题分析——The States of Matter
Now that you know a bit about chemical bonding, let’s talk about the different forms that groups of molecules can take. In other words, let’s talk about the states of matter. The states of matter that you’ll need to know for the SAT II Chemistry test are solid, liquid, and gas.
You might wonder why there are different states of matter at all. After all, molecules only bond together in one way, right? The answer lies in the type of intramolecular and intermolecular forces that exist both within and between molecules of substances.
