<p>I got in AP Chem this year from last year's bio class. So I really have no chem background. Should I get a prep book exclusively for SATII or just study the AP material and go take the test? (I have a PR AP Chem prep book)</p>
<p>Also, I want to know when would be a good time to take this test: In May right before the AP exams or in June? (My AP classes don't meet anymore after AP exams)</p>
<p>Some suggestion for U.S. History prep book would be greatly appreciated as well.</p>