If you want to review a certain topic with the AP Chemsitry review session on youtube, here is an awesome resource for you! It has all of the videos linked WITH the practice problems that were used in each video.
Another amazing resource! Write This, Not That is a Google Slides presentation made by AP Chemistry teachers all over the world. It includes general test taking tips and then gets unit specific. Practice questions, with answers and annotations, are included.
This document is AMAZING! It lists every free response question that has been on past exams, links to a pdf of the question, and for 2014-2018 also includes a link to an AP Chemistry teacher going over the question. Since the topics are all listed for each question, you can pick the topics you know you need the most help with! Remember for the 2020 exam, acid base equilibrium and electrochemistry are NOT on the exam.
Posted below are various practice tests, separated by topic. These units do NOT coincide with ours in terms of numbers, but it is all of the same information. Another AP Chemistry teacher has created these AND within the pdf has linked to the explained answers in a YouTube Video. Just clink the picture of the "link" to access the video. Pay careful attention to what questions have been skipped in some.
It is best to download the following as power points and go through them. The formatting may be off if you don't.