You know the very last topics you cover at the end of Ochem 1...Ochem 2 is pretty much a whole semester of that bull****. Say goodbye to your model kit and hello to reading graphs. IR, H NMR, spectroscopy in general, and a ton and ton of reactions. You go from this to that to create something else.
Ochem 1 > Ochem 2, in my opinion. Ochem 2 is slightly easier considering it is the 2nd semester of the class...But I found that the interest level was not the same...Might I add that I had a better professor during the first semester, so it kind of all goes together.
Basically, review extra well the stuff from the last couple weeks of ochem 1 and if you have enough time just get a copy of the syllabus for the fall classes, google for back exams, etc. and start studying the new stuff.
Oh, and make sure you read up on reviews for your professor, ratemyprofessor. It's probably the biggest factor that can make even the hardest and tedious classes actually tolerable and interesting.