I am a chemistry major, and I don't think college chemistry is so difficult. In fact, the difficulty is similar, as long as you study hard, hehe. If you have been exposed to college chemistry, you will find that the content of college chemistry is not as much as that of high school (here refers to the aspects involved), and the content of middle school chemistry is more, of course, shallower, mainly because you know it. And college chemistry is to explore this knowledge point in depth.

For example, the part of organic chemistry in high school is quite simple in our high school, and most of them are rote learning. In college, we will explore its reaction mechanism, what causes, what circumstances and what conditions make it produce these reactions.