<p>All:</p>
<p>I am not sure where to post this. I am taking AP Chem class and I have been told to participate in the National Chem Olympiad for my school. </p>
<p>Can any one tell how I can prepare for the exam? I have old questions and I am OK with them, What about the labs? What do they test you in? Please share your thoughts and ideas.</p>