<p>I took honors chem… only got to phase changes… had to teach myself equilibrium/redox electrochem/organic/nuclear/acids and bases/thermo… all in one week</p>
<p>I reviewed using a PR book. Never took AP chem, no tutors/prep courses, and my score will probably be 780-800.</p>
<p>if I get a 750+ I’ll be happy</p>
<p>are you a junior? (I’m a sophomore)</p>
<p>i had ap chem, and i took the blue book practice test. looking at a 770-790</p>
<p>off topic: kobe is amazing.</p>
<p>I’m a sophomore.</p>
<p>I’m pretty confident that with a good Chem Honors course and some self-studying, one could easily get an 800 on the Subject Test.</p>
<p>Yeah…my honors class allowed me to get like high 600s…and 4 SAT prep books and like 2 months allowed me to consistently get 800s on practice tests…</p>
<p>However…I wasn’t being very smart…and got 2 wrong, 0 omit as of now on this one…hoping for no stupid mistakes so I can get a 800</p>
<p>a couple of Roman Numeral questions</p>
<p>electrons-nuclear decay, third of mass</p>
<p>equilibrium forward/backward rates are the same, and constant observable traits</p>
<p>anyone have any ideas as for answers?</p>
<p>i know for equilibrium the rates for forward/backward are the same, but are the constant observable trait thing also true ?</p>
<p>I thought the one about constant observable traits was true…</p>
<p>why is that?</p>
<p>Because at equilibrium, there is no net change over time for either the reactants or products. Unless the equilibrium is disrupted by shifting the reaction left or right, shouldn’t the observable traits stay constant?</p>
<p>
</p>
<p>Electrons do not account for a third of an atom’s mass, so that’s not right. They are released in nuclear decay (beta particles), so that was one of the answers.</p>
<p>Does anyone remember the TTCE questions? How many were there? 3 or 4ish?</p>
<p>I know that this question has been asked multiple times in this thread, but I can’t seem to find the explanation I want.</p>
<p>With the lab procedures question, I had a toss-up between two: heating a substance with a graduated cylinder under a fume hood, and rinsing a burette with titrant solution before use. It seems that there is a general consensus for the former (that being the incorrect procedure), but I ended up guessing on the one with the burette. I had reasoned that you would rinse the burette with distilled water–not titrant solution.</p>
<p>I have like-zero lab experience with chemistry, so my knowledge of these procedures is less than adequate. Why is it that you would rinse a burette with titrant solution, then, and not with distilled water?</p>
<p>You do rinse burets with titrant solution prior to adding the titrant. If you rinse it with water,you would possibly dilute the titrant. </p>
<p>Have you every tried heating a graduated cylinder over a flame? Haha… that explains it. Most of them usually have some sort of plastic on the bottom so they stand up.</p>
<p>Also, you wouldn’t want to heat something when you were trying to get a correct volume reading. Heating causes expansion</p>
<p>so… which prep books did you guys use? which ones would you recommend? =)</p>
<p>what was the answer to the water boiling boiling point pressure T/F</p>
<p>for the Fe2(NO3)3 question that asks for the ions - i think it asks how many Fe ions were released - which is 2 moles</p>