<p>Hey, I was wondering how accurate are the Princeton Review’s practice tests compared to the actual AP chemistry test. Is it easier, the same, or harder?</p>
<p>Also, I’m dying on the acid-base equilibrium free response question. Does anyone know where I can get extra problems for that? Thanks guys.</p>
<p>From general trends, it’s not much harder than the real test.</p>
<p>Thank you, because I do a lot better on the Princeton Review than I do on the Cliff’s and Barron’s.</p>
<p>Barron’s tests are massively hard. They have a very bad reputation among SAT and PSAT practices due to their typos and the questions they use.</p>