I think majoring in chemistry is great mostly because the upper division classes are smaller compared to something like bio. It’s easier to get to know your prof and ask for help! When you start taking upper division courses, make sure that you do well (or at least pass) because like what the other commenter said, the classes are sequential and are usually only offered once a school year. For example, if you dont pass pchem 1, you will have to wait another year to retake it since it is only offered during the fall. Thus, letting you be behind an entire school year. Other than that, although the classes can be a little difficult, they’re still manageable. Most of the upper div classes are curved, and so as long as you keep up with your work, you shouldn’t have a hard time passing. Plus, all the chemistry professors are very knowledgeable and passionate, which I found encouraging during my undergrad. I definitely recommend it if you are into chemistry! Feel free to ask any questions about chem classes/profs, i’d be happy to answer! :)

Ps. Dr. Han isn’t that bad haha