<p>For me, I finished in 45 mins, so time wasn't a factor. I did massive overprep ( I think I did ever chem SAT paper in existence) so I was quite prepared. Overall, I did rather well :)</p>
<p>I didn't do any prep. When I signed up I figured I'd be prepping for the AP anyway, and that the material would overlap. But I haven't done ANYTHING for AP Chem, so I haven't done anything for SAT Chem either.</p>
<p>I really, really want an 800, though, and won't be satisfied with anything below it. I'm not TOTALLY confident, but... I don't know. There's no other date I can take it (I don't want to pay late fees for June) and I'm positive I got 750+, so... yeah.</p>
<p>i said extraction with liquid...cuz the KI would form KOH and HI...and u could then take out the sand and iron...and then evap the water..leaving KI...so yeah it would have to be multistep</p>