How do i prepare for the chemistry olympiad as a year 12 student? Grade 9 at GCSE
Look at some past papers to get a feel for what you're going to be dealing with. I advise not really doing the organic side of the paper as that's typically a lot more year 13 content but more the calculations as they can get you a lot of marks. Depends on how much you've learnt already and whether you're willing to learn more content for it. If you are, I advise learning enthalpy and hess cycles as they come up a lot and can be worth quite a few marks.