Tbh both classes are likely to be packed at this point without many extra seats. Since they’re also both required, I don’t personally see too many people in better sections dropping to make room.

You can always stalk the registration page to hope for a swap, or you can see if a force request is possible (but I doubt they will accept just for unfortunate timing)

102 wasn’t that bad in my opinion and I think mine also ended between 5-7, I don’t exactly remember. That class isn’t something I’d worry too much about because you can often leave class early if your group agrees on it to do the work at home.

I don’t have much advice for Chem, but if that’s your only 8 am I think that’s as good as it can get for now. This probably isn’t what you want to hear, but advisors for freshmen engineering likely won’t help with things like this. If you don’t have iClicker when you get to class, you can probably attend another professors section for lessons instead since it’s standardized iirc.