June 2009 - Chemistry

<p>only 3 unpaired because of hunds rule</p>

<p>I said deviation from the ideal gas wasn’t a function of temperature.</p>

<p>k200 which post r u talking about?</p>

<p>the function of temperature,
ohhh i put density</p>

<p>btw, ideal gas IS a function of temperature, as temperature increases, it becomes less ideal</p>

<p>2p orbitals can only contain 3 unpaired e
density is not a function of T
K + H2O —> KOH + H2 ----> K+, OH-, H2</p>

<p>how about the question 115? the question about CO2 and its polar bonds but linear arrangement? is it TTCE?</p>

<p>density changes because of temperature because then pressure and volume will also change</p>

<p>I put TTCE for the one about CO2 and the linear arrangement</p>

<p>hbrad8002: i put TTCe as well and i also got koh and h2 gas</p>

<p>Oh damn, I misinterpreted the 2p question. :(</p>

<p>is the one with density and temperature and stuff total energy of the gas?</p>

<p>I agree with HBrad on the roman numerals potassium question.</p>

<p>However, I think that “unpaired electrons” means that a 2p orbital can only hold 3. To hold six, you’d have to pair them up.</p>

<p>The answer to the variation in temperature one must be density, which changes only with volume- and I believe the gas was in a rigid container. Deviation from an ideal gas is true because ideal gases much have high temperature and low pressure. Average kinetic energy is temperature, so that can’t be it either.</p>

<p>I can’t believe I put square planar though. -_-</p>

<p>sorry, 2p orbitals can only 3 unpaired e,
i got the 1st wrong :frowning:
1 blank, 1 wrong so far</p>

<p>2p -> 3 maximum unpaired electrons (Hund’s Rule)
and K+H20 yields H2 gas and OH-</p>

<p>to correct some incorrect statements above this post.</p>

<p>2p can hold 6 i thought</p>

<p>Wow, this test was so much easier than I expected. I would be very surprised if I got more than a single question wrong, nevermind not getting an 800. Easiest test of all the practice I’ve done. Now I wish I’d studied for Math more, since I’m currently at the borderline 800 (1 wrong and 5 omitted so far)</p>

<p>hat about the one regarding equilibrium wiht I,II,III i tihnk i put two only the one with equivalent rates…</p>

<p>What was up with that salts question? Seriously not cool.</p>

<p>Sixthsense, I believe I put I and II, can you recall what I was?</p>

<p>first question TTCE HUNDRED PERCENT RIGHT ASKED MY CHEM TEACHER.</p>

<p>IRON RESH TTCE ASked friends.</p>

<p>2p holds 6</p>

<p>the ideal question remained 8 I checked it with a caluculator after test.</p>

<p>The most reactive compound was NA
smallest radius F-
O2 and O3 are allotropes.</p>

<p>Numeral I stated that all observed stuff was constant</p>

<p>I’m pretty sure I put I and II for the equilibrium rates because statement 3 was wrong; it said concentrations were equal for products and reactants I think?</p>