<p>yeah, H2 and O2</p>
<p>wow. i did terrible. i didnt know soooo many of them. </p>
<p>for the </p>
<p>HgCl2 + H2S —>
what was the coeficient for the H2S?</p>
<p>and the iron mesh sheet and the iron block about rusting and surface area?</p>
<p>and why does N2 have a high boiling point?</p>
<p>the purple gas forming above I2?</p>
<p>-.-</p>
<p>What scores do you think skipping 3 (or 4) and getting 3 or 4 wrong would be?</p>
<ul>
<li>i think coefficient was 1</li>
<li>iron mesh had greater surface area, so it would rust sooner</li>
<li>I don’t remember a place where they talked about N2 having a high bp.</li>
<li><p>sublimation</p></li>
<li><p>sounds like a ~750-770 dolce</p></li>
</ul>
<p>coeff for H2S: 1 (products= 2HCl, HgS)</p>
<p>Iron mesh sheet has greater sfc area .. reacts more than the block.</p>
<p>I think you meant why N2 has a low BP? I said something w/covalent bonds.</p>
<p>Purple gas over solid I2= sublimation</p>
<p>so was the iron mesh one T/T/CE?</p>
<p>coefficient was 1 (very sure)
princeton is correct on surface area
for the N2 question, i was arguing between london dispersion and covalent bonding, i think i put covalent bonding since it’s much stronger
i skipped the I2 one..idk what it is</p>
<p>thanks guys. bleh.
at least i got those right…</p>
<p>and i was confused after readhing your posts about NaF vs. NaAt… haha.
which one was the correct answer?</p>
<p>oh and the question about CO2 leading to the green house effect because it forms acid with H20? was that true?</p>
<p>um if dolce is right about the question relating to bp, the answer can’t relate to covalent bonds b/c only intermolecular mean anything in phase changes</p>
<p>i put T, T, not correct exp</p>
<p>i put true/true not CE</p>
<p>what was the goddamn question? =( ( on the N2 one)</p>
<p>what were the answer choices for the N2 question? for some reason, I think I put Krypton. Oh and guys, Neon was the answer for some question relating to size right?</p>
<p>EDIT: Oh, wait that question gave a list of ions and asked for the smallest, nvm; the answer for that one was F- already discussed. I used noble gas configs to reason it, hence: neon.</p>
<p>i think the N2 question was wht causes the liquefaction of N2 at low temps, which would be london dispersion forces. </p>
<p>and the answer was NaF, not NaAt</p>
<p>When K reacts with H2O, does it produce OH ions at all? Or is it just H2 gas?</p>
<p>And for the last TF one (Carbon Dioxide), was it TTCE? It said linear structure but said nothing about the polar bonds canceling out…</p>
<p>pk0123, YES you’re right and that’s what I put! :)</p>
<p>K produces OH- and H2 in water.</p>
<p>Last one was tricky; I think I put TTCE though; the thing about it being linear kind of explained it (The REAL explanation though is that the polar bonds cancel each other like you said)</p>
<p>And was the last one E, heat of sublimation?</p>
<p>the N2 was a matching one. </p>
<p>it was like</p>
<p>a. covalent
b. ionic
c. metallic
d. london dispersion
…</p>
<p>qhausqkhqh yeah it was t/t/ce</p>