How should I approach the SAT II Chem?

<p>So I have 3 weeks until I take my SAT II's. I'm studying for the Chem subject test using the PR book, and I only know like 1/3 of the stuff. So how should I approach the rest of the stuff I haven't learned yet? The PR book so gives good explanations and example problems for each section, but still I've never learned this stuff. Should I just try and cram it all in? It doesn't look that hard to cram</p>

<p>anybody have any advice?</p>

<p>in ur case...u better use Barron's to study</p>