<p>I said there’s no change because mass percent is a proportion and adding more water shouldn’t change that proportion. Also would 29.8% be close enough to 30.5% to get me credit?</p>
<p>Changing volume of water would not affect the % iodide calculated</p>
<p>Sorry and one more it was triganal planar right not t shaped cause it was 2 sets of unpaired electrons not just 1</p>
<p>Yes with higher temperature there would be more kinetic energy in the collisions therefore more reactions would actually happen. I just hope my writing was legible in this question :</p>
<p>Didn’t it ask for the one that would have a dipole moment? Because it’s t-shaped…</p>
<p>You might be right I’m just wondering. I thought with 2 unpaired electros it can’t be T- shaped but I’m unsure</p>
<p>Trigonal planar doesn’t have a dipole moment. I actually drew a picture of T-shape to show the dipole movement because one side had only electron clouds and the other side well had the three F atoms. However, I didn’t know what to say about bond polarity… I said the F-Cl were not polar because of a low difference in electronegativity </p>
<p>T shaped is 3 bonded pairs of electrons and 2 pairs of unbonded electrons. What you’re thinking might be seesaw shape. Anyone know if 29.8% will be accepted? I’m in purgatory now because I put that and didn’t add units for k in the half life question :(</p>
<p>The bond polarity part of it was frivolous as it didn’t matter since every bond was an F-Cl bond so idk why they even mentioned that… also was that a 4 point question? because I’m pretty sure I didn’t talk about bond polarity either D:</p>
<p><a href=“http://us21.chatzy.com/61989683268474”>http://us21.chatzy.com/61989683268474</a>
For a chatroom with people discussing in realtime :)</p>
<p>^ size is only 10.</p>
<p>■■■■ chem im gonna go jump off a building</p>
<p>The exam as a whole was pretty rough, don’t think i’ll be able to get a 5 but hopefully still a 4. What do you think the scale will be for a 4? At least Calc is on wednesday so that’ll be an easy 5 to boost the confidence :)</p>
<p>What about the question with the pressure of co2 gas increasing and 2 trials 1 with 50g amd 1 with 100g</p>
<p>What do you guys think the cutoff will be? 70%? 65%? even 60% for a new test lol </p>
<p>Compared to the bio revision last year, the chem exam seems to be much tougher than last years b/c of the time constraints on the frq. The bio revision last year had a very tough scale but i think chem will be a little bit more lenient. 65% right seems like a good cut off point b/c before the revision 67.777% was the cutoff</p>
<p>Anyone familiar with the bio cutoff for a 5 last year so we have something to relate to?</p>
<p>What was the cut off for a 4 for bio last year? There’s actually a small chance i got > 67% so i could get a 5 haha</p>
<p>Would 60% be a 4?</p>
<p>I was guessing that 60-65% was going to be a five…</p>