So I've applied to Harris Westminster and next Saturday I have two entrance exams (maths & chemsitry). For maths I'm continuing with my GCSE revision as well as doing maths challenges so I'm not too worried. And for chemsitry I'm going over everything I've learnt (OCR 21c exam board) as well as some GCSE edexcel stuff because they do edexcel for A-level, but I feel more worried about it since I havent done chemistry since last year as I've already done my GCSE for it.
What would you reccomend to revise for chemistry for the entrance exams?