Any good resources for chem?

<p>Do you guys know any good resources (esp. online not forums, just like tutorials and stuff) for chem? I'm in AP chem right now (it's tough as heck), and I can use all the help I can get. Thanks!</p>

<p>buy an AP book. Barron's is probably the best one but it's the most expensive. it was $30 last time i was at Barnes and Noble.</p>

<p>Chemistry:</a> The Central Science, 9e CW</p>

<p>Use the "jump to" menu to navigate through units. They have multiple choice quizzes as well as fill in quizzes.</p>