Hi, so I have just started the school year and I'm taking AP chem. I just took my beginning of the year test, which tests us on everything we learned in Honors Chem. I did all the practice problems in the textbook that my teacher told me to do (like 100+ problems), and I even looked into every topic deeply through online videos and websites. So i thought I was pretty prepared, but NOPE. I completely bombed the test. Well, I didnt get my test back, but I know I did horribly. I left 8 blank (out of 25 questions), and the questions I did answer, I wasn't confident with. So my question is, where can I find extremely difficult chem questions? I know there are released AP test exams, but I'm looking for specific topics. Like if I want specific practice on, let's say, gas laws, where can I find online practice? I want hard, AP type questions, not beginners questions. Obviously, even my AP book's questions didn't prepare me for the test, so are there any websites that have AP quality questions on specific material?
Please no, "just use google" answers because I have tried, and yes I found some good websites, but I want to know if there are anymore.