<p>OK, from what I've seen, most people recommend Barron's, PR, and some 5 steps. But, I have also heard that Barron's has some mistakes in it that may confuse you, but on the other hand, people say it goes really in depth. I don't really know about the other two too much. I want to be able to get a 5. Which one?</p>
<p>PR for sure. Not too much dept but I mean if your class used Zumdahl, then u should use the PR reviewbook since it provides a real broad review that goes into a good enough depth (for a reviewbook anyway). So as long as you have a solid background PR should be able to help you considerably. the practice tests are good too. for real practice tests check out the test section on griffithchem.com</p>