<p>I'm not sure... but i interpreted like that.... liquid goes to vapor.... (alcohol boiling....something...) ... there were three questions .....</p>
<p>(a) alcohole boiling
(b)...somthing..
(c)...something..
(d) iron rusting
(e) .... something</p>
<p>oh!!! I think i put (D) in the statement that "which is applied Oxygen???"</p>
<p>oh yea that's why i put rusting^^^, i was wondering why i would be stupid enough not to pick the liquid-->gas</p>
<p>which is the following ..........oxidation number of Mn? +5...????
I can't remember the answer choices....:(</p>
<p>What'd y'all think about the test overall? I thought for the most part it was pretty easy except for a tricky question here or there.</p>
<p>yea i think it was +5...can't remember</p>
<p>I thought the test was pretty hard at first...mostly b/c it was harder than the ones I've seen on the princeton review book...and b/c it has been months since the AP exam. But after looking through this thread, I don't think i did that bad :). The curves are usually generoius though.</p>
<p>oh!!! NH2 and N2H4 is something ratio......something something.........</p>
<p>and.... if same temp. and same pressure... then???? what is right??</p>
<p>I think I put same number of moles or molecuar someth'...</p>
<p>Yeah it was +5. Im almost positive.</p>
<p>if same pressure and temp, we have same # of moles which means some number of molecules (just use PV=nRT)</p>
<p>what was the pH question?????????
0.01M of something..
I put both pH =2... but I think something was pH =7???? was there any anwer choices pH =7?</p>
<p>i put 2 for both..both questions had H concentration of .01=10^-2</p>
<p>Bovary, can you please also check the questions what I wrote from the first page..? THX :)</p>
<p>THERE WAS Graph question.!!! oh my god... I was really overanalyzing, so I couldn't decide the answer between A or C???? so i leave a blank....</p>
<p>oh i've seen that same graph during a lab in ap chem...it was the one where it decreases, flattens out, and then decreases again</p>
<p>Yeah i got that answer too. H2 and O2. I wasnt too sure but then I remember experiments in which we did all these so i ended up with the right thing. I guess all those seemingly useless labs do help.</p>
<p>Half-life question....</p>
<p>On part A... there was [Ne]something.... [Ar]something..... find the answers....some questions</p>
<p>dammit, i missed that one...i have no idea why i put that H2 can't be collected...b/c it's flammable? lol</p>
<p>Oh.... and N2 / O2 put on 2L volume box...question</p>
<p>I got 4atm.... total pressure = P of N2 + P of O2 = 2 + 2 = 4</p>
<p>PV=nRT if Volume is increased, then pressure is decrease... and Volume is decreased, then pressure is increased...
1L 4atm of O2 -> 2L 2atm
4L 1atm of N2 -> 2L 2atm...</p>
<p>and ...total pressure...so 4atm??? isn't it.... acutally i put 2 at first but I sum between those two.</p>
<p>CO3^-2 structural problem.... i have no time... so.....:(</p>
<p>i put that it didn't take into account the remaining unpaired electrons on the diagram or something</p>