Chemistry Olympiad preparation resources

I’m a rising junior and I took AP chemistry last year. I also tried out the chemistry olympiad last year, but unfortunately, I didn’t pass as a finalist. I am wondering if anyone who has experience with the chemistry olympiad knows of any resources I should use in preparation for this year’s upcoming chem olympiad. I would also greatly appreciate any recommendations for any sources that provide solutions and explanations to past olympiad problems. Thanks!

There are past exams and problems online, those should help a lot!

Do you know if there are solved solutions available anywhere? I have practiced past exams, but sometimes the answer key isn’t enough to help me.

@CavsFan2003 Do you know if there are solved solutions available anywhere? I have practiced past exams, but sometimes the answer key isn’t enough to help me.

I’m not entirely sure if there are. I’ve only been able to find the ones with an answer key.