UWMadison chem 103 - anything to review before taking the class?

Taking the introductory chem 103 when school starts. Seems like there’s a lot of content, and a year-long HS class is being squeezed into a semester.

I took chemistry in HS, but that was a couple years ago, and I didn’t like the class or learn much from it.

Anything I should review before college starts?