June 2006 - Chemistry

<p>nope... im pretty sure i didnt get any 4 same letters in a row... (i am most probably wrong if you are so certain.. lol)</p>

<p>For the lab safety, I think it was the diluting acid one. You shouldn't pour acid into water, but rather the other way around, in case stuff splatters or spills...</p>

<p>Oh Yes.. that stupid lab safety question got me thinkin pretty long.. haha</p>

<p>lol. u do pour acid into water because TOO much heat will form if u pour that h2o thang into acid, so u add acid slowly to the water.
in addition, heating a graduated cylinder is just WRONG, so that was the asnwerur</p>

<p>sweet..I had it down to the acid and cylinder...but I was like "why would you EVER heat that..."</p>

<p>But didn't we always learn to add acid?</p>

<p>I don't think you're supposed to heat things in graduated cylinders... they should be in test tubes?</p>

<p>There was also a trick q that asked how many unpaired electrons could fit into a p orbital. At first I put 6 and then realized they aksed for unpaired so changed it to 3.</p>

<p>So no one else remembers 3 or 4 bs in a row in the second column? heh</p>

<p>oh no odin I missed that...didn't notice that, that sucks</p>

<p>yo, i got E for every single question</p>

<p>really? I got B for every question...I wonder who's right...</p>

<p>Hah good. I was like "umm you dont heat a graduated cylinder."</p>

<p>Was the isomer question T, T, CE?</p>

<p>yesh, my friend</p>

<p>Wow, I feel silly. Right... for some reason I pictured a beaker in my head instead of a graduated cylinder... heheh.</p>

<p>did u guys get 3 for oxidation one (nitrogen family)
something about temperature cannot be used to use ideal deviation
heat of sublimation
did anyone get 22.4 for one of them
and 11.2 for the other gas one (2 atm, NO2, 273K)
CL- stronger oxidizing agent thn\an S</p>

<p>and also for the is C to C02 oxidiation</p>

<p>yeah, cuz it goes from zero to positive 4.</p>

<p>okay here are a few I have doubts on:
1) The one where temperature decrease from 200K to 100 K, pressure increases or decreases I don't remember, then they ask for the volume.
2) With Nitrogen, what oxidation number did it changes to. Was it from +5 to something?
3) And then there was the one question where they use a weird vocab word for the answer. I think it was E. Have something to do with temperature.
4) which one does not something to temperature? The answers were total energy, pressure, speed and ....
Sorry if my questions are confusing. I don't have a very good memory.</p>

<p>Was the nitrogen one going from +5 to +3?</p>