<p>when are scoring guidelines typically released?</p>
<p>when are the solutions out?!</p>
<p>Worst Case scenario (I’m really insecure about Multiple Choice)
MC: 50/75
1: 3/9
2:5/10
3: 4/9
4: 13
5: 7/9
6: 5/8
For 91.4:(</p>
<p>Projected
MC: 60/75
1: 5/9
2: 4/10
3: 5/9
4:15/15
5: 8/9
6: 8/8
For 111.4</p>
<p>for 4 a. if i forgot to get rid of the potassium, how many points would i get off</p>
<p>I’m really nervous about the multiple choice. Could someone please tell me the answer (preferrably letter) to number 2 on the MC? I know what the answer is, but I guessed on that question, so I forgot if I guessed the answer (I only remember which letter I picked).</p>
<p>guys they can’t be really picky on the reactions section right? i mean if you have exactly what they have, you get the points? (Unlike explain type questions which are debatable?)</p>
<p>I wish we could compile an MC list… if we worked together we could probably make one… it’s just that I’m borderline 4 and 5 too and I wish I had a better idea on how I did on the MC.</p>
<p>@FlyingWombat: was that the amphoteric question? it was Al2SO3. I forget the letter of the answer though.</p>
<p>With the reactions, I did very badly, I was running short on time, so I calculated the moles wrong in the first one, and put an OH- instead of an H+ in the second one, which messed up half the reactants, the balancing point and the questions point, what the difference a hydroxide molecule can do.</p>
<p>Yes google docs please!!!</p>
<p>You are NOT allowed to talk about MC unless it is released, which it won’t be.</p>
<p>WORST CASE:</p>
<p>MC: 50/75
FR:
- 5/9
- 7/10
- 6/9
- 12/15
- 6/9
- 6/8</p>
<p>Total: 100.8</p>
<p>Not bad, but so borderline 5 that it’s hard to tell…</p>
<p>I think people are underestimating the MC, because if you did well on practice MC, this was not that much different, and overestimating the FR, as there’s a good chance you made an error with the specific essay points, or numbers plugged in wrong if you rushed through any of it, but either way it balances out the same.</p>
<p>Would these two be valid points for increased temp.</p>
<p>1) Increased KE caused more collisions between the molecules increasing the pressure.
2) The increased temp increased the volume thus increasing the pressure in the container.</p>
<p>Aren’t those two essentially the same thing? I said that too… only because I didn’t know what else to say. And does anyone know what (2)d is?</p>
<p>First of all, increasing the volume would decrease the pressure, and its assumed at constant volume, or else it could have been anything. That’s either a bad questions or they’re looking for …and the sky was blue therefore the pressure was higher, .
@fizixxxxx For 2d, I explained that in a solid state it would take more energy to break the bonds, therefore there’s not enough energy for the reaction to occur…I tried to elaborate on that.
Killerskulz talked about the solid state not having delocalized electrons but delocalized electrons have to do with bonding in any state, if anything the solid would have the delocalized electrons because they allow it to stay together, that’s how metals work in this case, and I guess liquid would have it to.
Now here’s a question: for 5 I drew the isomer as 2-hydroxyethane, not dimethyl ether, how do you think that would affect my answers for the next part, I still explained how it’s not as soluble, because it’s more symmentrical, thus weaker dipole, which were some of the points just applied differently,</p>
<p>I think it’s cause the electrons do not flow in the solid state though I’m not sure</p>
<p>Holy crap I just checked the FRQ, I didn’t see questions 5e and 5f anywhere on my exam… How could this be? There is no way I could skip over something like that. This is unbelievable. Btw, what was amphoteric and why?</p>
<p>Wait you mean 6 not 5, right? ^^
And for the pressure question, if I said 1) the collisions increased while the volume remained constant and 2)there is an increase in molecular attractions, is that sufficient for full credit?</p>
<p>@TheBombingRange: That happened to several of my friends, too. I guess they were just easy to overlook. But I wouldn’t worry about it–e and f should be 2 points at most, which won’t hurt you much in the grand scheme of the FRQ.</p>
<p>For the first reaction problem, I said that calcium has a 1+ charge.</p>
<p>Yes, for real. This is what happens when I’m rushing. Somehow, though, I still got the correct answer of 1 millimole of calcium phosphate produced.</p>