<p>I took regular chemistry last year, and am currently taking AP Chem. I looked at the Princeton study guide, and there was stuff on there that I have never heard of...Should I take it or not?</p>
<p>I took regular chemistry last year, and am currently taking AP Chem. I looked at the Princeton study guide, and there was stuff on there that I have never heard of...Should I take it or not?</p>