<p>(a) I only <a href="b">0 VOTES</a> II only <a href="c">0 VOTES</a> III only <a href="d">2 VOTES</a> I and II <a href="e">0 VOTES</a> II and III <a href="f">0 VOTES</a> I and III <a href="g">0 VOTES</a> I, II, and III</p>
<p>anyone thinks its III only??</p>
<p>i'm pretty sure about that...b/c volume is a constant and pressure would decrease, not increase..
did anyone get the question about the hybrization w/e for an element in the same group as N? <em>question 60-something</em>
i put down the one with p3 at the end (rushing)..but then my friend told me that there was 4s2 right before the p3, so that it was wrong..
confused -_-</p>
<p>volume would decrease either way... because its cooled..
u sure it occurs in a can????</p>
<p>an pressure decreases too with temperature... but increases w/ number of moles increasing so its debatable...</p>
<p>III is right with its "Decreases" instead of "Increases"</p>
<p>What was the question asking for?</p>
<p>its not hybridization..
its just electron configuration</p>
<p>Why are people having trouble with the question on the reaction? it's Le Chatalier's principle, plain and simple.</p>
<p>2A(g) -> B(g) + energy</p>
<p>Decreasing temperature decreases a product, moving the reaction to the right. As a result, A decreases, B increases.</p>
<p>However, pressure decreases because 2 moles of gas are being converted into 1. Volume is constant.</p>
<p>Was the question asking for which electron configuration would have similar properties as N?</p>
<p>^..that's what i meant :D...forgot the word -<em>-...
well either way, about the NO2 problem, there wasn't a choice for volume decreasing...yeah..i'm pretty sure the problem said it was in a glass valve/tube thing (i'm so stupid..i was thinking volume as constant b/c of the container -</em>_=)..</p>
<p>the question just asked for the electron config..i know it's pretty simple (N group , so p^3)..but then a friend told me that my choice was wrong b/c there was a 4s^2 before the 3p^3...so it couldn't have been it.</p>
<p>so is it III or is it something else??</p>
<p>was III (NO2 decreases or increases)??</p>
<p>You guys have the NO2 problem wrong. That isn't the way I remembered it. Here is how I rememberd it, because I know for a fact (well, pretty darn sure) that it was III only. I spent a considerable amount of time on this problem. This is how the question is read (from my memory):</p>
<p>2NO2(g) = N2(g) + 2O2(g) +heat
(I'm not sure on the equation though...)
If the following gasses were put into a sealed cylinder and put into ice water, which of the following would happen?</p>
<p>I. increase in pressure
II. increase in volume
III. DECREASE in concentration of NO2</p>
<p>This is III only. And you guys had the increase/decrease mixed up, which probably messed it up. The equalibrium shifts to the right so NO3 decreases. But I think I have the equation wrong because then more moles of gas would be produced, which might increase the volume. anyway, the answer HAS to be III only. It just... has to be ;D But I keep remembering that the left side of the equation had a few more moles... blah. It's been a while : /</p>
<p>ok..so final answer: III only?
III only it is!</p>
<p>yes it is only III
because they never said that the total volume decreases or total pressure decreases or whatever it was</p>
<p>you got another III here.</p>
<p>I was unsure on that one, but I've never studied anything that mentioned volume or anything like that being affected. I figured if it would be, it would have been mentioned somewhere. I know, poor argument :)</p>
<p>yeah. I originally didn't answer that, but i went back and was like, hey...it has to be III. it's tricky, but yeah.</p>
<p>(c) for III only is the right answer, I'm 100% sure</p>
<p>which of the following is incorrect (something about crucible...)?</p>
<p>(A)the product is dark
(B)the product is solid
(C)Cu disappear
(D)<a href="E">can't remember the choice</a>Cu is lighter than product</p>
<p>I skipped this one, anybody?</p>
<p>what did you all use to study? i used kaplan, and i dont recommend it.</p>
<p>the answer is the [can't remember the choice], it asked for which chemical observations you can make, the one u forgot is "copper loses electrons" or something like that, and u can't observe that.</p>