<p>I got an 800 (perfect score) on the Chemistry SAT II. My advice for you is to do what I did. Read the Barrons Chemistry SAT II book for every chapter, except one of the chapters, which basically talks about the significance of a few elements, sulfur, nitrogen and phosphorus I believe. It went way to in depth on that, and the chapter was totally unnecessary. For the Oxidation Reduction sections in Barrons skip the part where you’re told how to balance equations by oxidation-reduction equations using 2 different methods. That’s really an AP topic (not oxidation-reduction, just the 2 methods explained). For the nuclear chemistry section, skip the chart on the types of materials to stop alpha particles, the distance alpha particles and gamma rays travel, etc…way too excessive. Barrons also lacks a little bit on this section because it doesn’t teach nuclear fission or nuclear fusion. You can just search online. You don’t need to know much. After reading Barrons, read the online Sparknotes “Descriptive Chemistry” section (it does a good job for descriptive chem; the Sparknotes lesson on descriptive chem is fairly concise, easy to understand, and covers the important aspects).</p>