<p>In my AP Chem class 80% is an A. Its a pretty hard class with lots of quizzes after just getting a packet. We took like a weak to learn redox reactions and then took a test. </p>
<p>Our teacher doesn’t teach from the text, Zumdahl. He kinda of just gives packets and tells us to do them.</p>
<p>But hey it works for me I have a 96.</p>