mm, yeah how is the prac work, ive heard its pretty intense, with the coordinators monitoring your every step as you do it.
Is it similar course material to chem 3/4?
The first prac you do is really stressful.. But once you get in the knack of the process it's not too bad(like everything I guess). Your demonstrators are usually really helpful and give you all the answers anyway. xD
The secret with uni chem is to do really well in the web tests/pracs as they make up 40% of your mark. If you can consolidate 35-40% of your mark before even sitting the exam it relieves you of a lot pressure(since you only need 50% overall to pass). The exam is not a hurdle so you don't need to pass the exam to pass the unit.
In terms of work load.. I did jack shit last semester and got a HD. I didn't even take notes in class. However, this obviously varies from person to person and i don't condone it at all.
The course work is sort of related to chem 3/4, but it doesn't help hugely imo(well at least for last semester). You do however have a big overlap with unit 1 chem, so if you ripped that the first couple of weeks will be cake.
Also, I endorse everything vexx says. He's right on the money.