<p>What do you guys think the 5 cutoff will be this year? It seemed kinda harder than previous years tests...</p>
<p>In 2008 it was 100, so 100-110?</p>
<p>My students thought it was harder than 2008 when they took it, but when we went over it they ended up scoring very similarly to 2008. The ease of 4-6 made up for the difficult parts in 1-3. I think the cutoffs will be similar to 2008, maybe a 5 will be like 98 and above instead of 100. This is just from gauging my classes’ feelings on it. They thought the MC was around the same difficulty as 2008.</p>
<p>@Rusty:If you actually got a 65/75 on MC, all you’ll need is around 35/75 on FRQ. You can get 30 points on 4-6 alone. With the points you also got on 1-3, you’re way into the 5 range. If your score estimations are correct, you got a 5. The 2008 curve was 100 and up was a 5 and that takes into account the guessing penalty being removed (it was 96 and up before).</p>
<p>I got like one point on FRQ 3, but otherwise feel I’m straddling between 4 and 5. Pretty nervous for the curve.</p>
<p>For MC, I have no idea what to expect, but I do remember feeling good about it and answering every question (only guessed ~2 of them). </p>
<p>FRQ was kinda wierd. For #5 I accidentally skipped the diagram and the subquestion below it D:</p>
<p>Im guessing ~15 off the whole frq section. Do I have a good chance for a 5?</p>
<p>@Piepod you are pretty much set to get 5+</p>
<p>I took AP Chem 2 years ago, and number 3 doesn’t seem that hard…
a. You just add the last 2 and subtract the first
b. Just add all the bonds in the product and subtract all the bonds in the reactant
c. Easy based on sign of b
d. This is just simple exponential decay, right?
e. This is just rate constant times the initial concentration
f. This would be a curve, since Ln([]) would be linear with time</p>
<p>@garfieldliker</p>
<p>Yeah pretty much. For D though you need to use the ln[A0]=-kt+ln[A] or smth like that.</p>
<p>@garfieldliker,</p>
<p>Yeaahh it wasn’t too bad overall, but in the moment it’s more difficult as you know. I thought I did fine, but I reeaaallly messed up haha. I got part a) right, but for b), you subtract the PRODUCTS from REACTANTS (not the other way around like you said, which I did too). So that throws off the answer in part c), and then I forgot the first order equation with the ln(A) terms, which threw off part d) and e). Luckily, I got part f), but those little mistakes in parts b) and d) really threw me off.</p>
<p>I’m kind of worried about mine. I think I messed up on the last FRQ, plus I couldn’t find the metal for the electrochemical reaction on the list, only to find it after the test.and the equation writing one…I probably only got a couple points on that. Also, I’m not sure if some of my justifications were correct. I’m hoping for a 4…</p>
<p>About the PRODUCTS-REACTANTS is false. Bond linkage is the only one with REACTANTS - PRODUCTS. I think we’re good there.</p>
<p>Im super nervous to find out what I got for this test
its either 5 or 4 :S
ughh cant wait!</p>
<p>I’d venture to say that the cutoff for a 5 would be around 90-100. Most people at my school and here on CC thought that the MC was very difficult, and although FRQs 4-6 were easy and thus made up for the difficulty gap of FRQs 1-3, the first three free responses are weighted more heavily.</p>
<p>
</p>
<p>Wait…if the products have high energy bonds, and the reactants have low energy bonds, the reaction is endothermic, so delta H is positive…that could only be if it’s product-reactant</p>
<p>Edit: I’m an idiot…high bond enthalpy means you need lots of energy to BREAK the bonds, so low enthalpy=>high is exothermic. </p>
<p>Well, hopefully, your guys’ intuition was better than mine on the actual exam :/</p>
<p>I remembered that bond enthalpies worked differently, so hopefully I wasn’t dumb during the test :)</p>
<p>Hoping I got a 5 on that. I spent too much time on Chem to get a 4 rofl. I’m thinking 1f on the FR was the only hard question. Idk I kept getting a completely wrong answer that included H2O’s dissociation.</p>
<p>Is it just me or was that exam seemingly easy</p>
<p>I mean I heard that the 2010-2011 exam was super hard
from teachers/professors I heard that they dumbed down the 2011-12 exam a bit</p>
<p>The exam wasn’t easy since we have more 2s and 1s than usual and less 5s. haha.</p>
<p>I thought the exam was fair, but certainly not easy</p>
<p>They threw quite a few curveballs in the FRQ and MC, though, like yodelo said, it was definitely fair, just not as predictable.</p>