<p>I have about 20 days to prepare for the AP Chemistry exam. I'd like at least a 3.
Currently finishing up Acid-Bases/Titration/pH</p>
<p>Topics I have not covered:
Organic Chemistry
Biological Chemistry
Oxidation-Reduction Reactions</p>
<p>I'm definitely not going to have enough time to go through those last 3 topics, which should I focus on?</p>
<p>Btw I'm using PR.</p>