Is it possible to get a good score on the SAT Chem Test without taking a class?

I’m a junior in full IB this year. Due to schedule complications I could not get into the IB chemistry class but I still want to take the chemistry subject test. I don’t really know anything about chemistry either. There’s chemistry club twice a week at my school that I can join though.

Is it reasonable for me to want to take the test? If so how much and how should I study for it? Thank you.