<p>what 3 wrongs did u get?</p>
<p>8g of gas -> SO3
Oxygen loses 2 electrons in KClO3 -> KCl + O2
3rd one I’m not so sure about; it was the TTCE about combustions being exothermic. I don’t remember if I put false for the cause (products have lower enthalpy?).</p>
<p>Hate myself for the first two mistakes I made, but can only hope I have no more than 1 or 2 others that are wrong.</p>
<p>what did u put for the kinetic theory question and the pressure of gas (750-20)…</p>
<p>the answer to the combustion question is F,T</p>
<p>Can anyone remind me what the KMT question was exactly? I remember something about constant speed, which I thought was the trick. The molecules may have constant velocity, but cannot have constant speed, because they change direction.</p>
<p>I had the collisions answer for KMT and 750-30 for the gas.</p>
<p>@fleet1x actually I think you have it backwards, they could have constant speed but not constant velocity (velocity incorporates direction). I still think it’s the collision choice though.</p>
<p>i’m honestly still clueless as to how the KMT one is about constant speed or hitting container walls or whatever. One of the main tenets of KMT is that kinetic energy is directly proportional to temperature. The two gases were at the same temperature, and so their kinetic energies must be the same. What am i missing here?</p>
<p>You’re right. I had the correct thought during the test, I just typed it wrong. Was the question “what cannot be assumed about gases according to KMT?”</p>
<p>For this problem was the numbering from bottom up, so the lowest particle was 1 and the highest particle was 3 or was it from top to bottom so the highest was 1 and the lowest (alpha) was 3. Also what letter was the correct answer choice?</p>
<p>Kinetic energy also incorporates the mass of the gas… dunno if that’s involved in any way. It said the gas was air, so since the particles consist of different gases maybe the KE’s aren’t the same.</p>
<p>@diddly: You’re right about that, but that was for the T/F/CE section (the answer to that one was T/F). The KMT question we’re talking about didn’t have two gases (at least, I don’t think it did), and it was a multiple choice. Does anyone remember specifically what the question asked for?</p>
<p>oh god if it said ‘what CANNOT be assumed’ i will go jump in a river right now</p>
<p>legit made the stupidest mistakes on this test. let’s hope that doesnt happen on monday with the AP! lol</p>
<p>Remember that kinetic energy isn’t the same for two different gases at the same T, only the average kinetic energy is the same</p>
<p>The KMT question was talking about air… so I guess N2, O2, etc.</p>
<p>do u guys remember T,T,CE’s</p>
<p>one was the neon, another one was water having a higher bioling point than something else because of IMF’s…the last one about oxidation/reduction was also a T,T,CE.
what other were T,T,CE? – I think that’s all…</p>
<p>I had 4 TTCE’s but have no clue which. The two about boiling point and neon sound right; I don’t remember the others though.</p>
<p>Can someone tell me the full question for the neon?</p>
<p>First part had to do with neon giving off light if you ran a current through it (something like that); second said that electrons give off light when they return from excited states to ground states.</p>
<p>DOES ANYONE REMEMBER the exact question on T/F for KMT??? Im freaking out</p>
<p>equal gas moles = equal volume BECAUSE the gases speeds are the same (something along those lines).</p>
<p>Gas speeds are only the same if the weight is the same.</p>