I'm doing intro chem because I didn't do HSC chem (it's suppose to be for those with 0 chem knowledge). I'm finding it very very hard lol.
Probably because I haven't done any chemistry since year 10 at the latest. And even then I didn't concentrate on it at all since I knew I wasn't doing it in the future.
You can always do what I did, or you can just do chem 1A (especially since they seem to revise a lot of HSC things briefly, but they do expect a year 11 knowledge of chem at the minimum / assumed knowledge).
Chem 1B is offered in the summer, so I can do it then or just do it next year.
If I didn't do the math bridging course, I probably would have done the chem bridging course and gone into chem 1A.