<p>Umm
I’m not SURE but I think my teacher mentioned something about how in GALVANIC CELLS, its Anode + and Cathode - but then in ELECTROLYTIC CELLS it would be Anode - and Cathode +.</p>
<p>Someone correct me if I’m wrong.</p>
<p>UGH
Acid/Base , Titrations, Buffers
are going to KILL ME
-_-
Anyone know if just reading the chapters about them in BARRON’S is sufficient?
Is there like a website that explains how to do titration/buffer problems in step-by-step detail?</p>
<p>^^I think that’s true too. Electrons flow from anode to cathode. So cathode is negative?</p>
<p>reduction always receives electrons. Remember: RedCat (reduction, cathode)
oxidation gives electrons. Remember: AnOx(anode, oxidation)</p>
<p>yes AnOX and RedCAT- thats the way</p>
<p>OIL RIG- oxidized is electrons lost // reduced is e-'s gained</p>
<p>Knowing an-ox, red-cat and knowing the equation triangle should suffice for any electrochemical FR. For organic, take 5 mins to at least memorize basic functional groups and what they look like, because it may be a whole chunky FRQ. </p>
<p>And to whoever asked about what the people want in writing sections, its just 3 concise sentences. Don’t BS them, everyone thinks they can be vague and fool the grader, but it doesnt work. Just say blahdyblah is more electronegative than blahdyblah because it has a higher effective nuclear charge and less shielding. Dont write ‘electronegativity decreases as you go down a period.’</p>
<p>So…we plannin’ on doing an AIM chat session?
I guess I can make it - APCHEM12</p>
<p>LEO-Lose Electron Oxidation
GER-Gain Election Reduction</p>
<p>I need to study buffer/equilibirum, and Labs. I especially hate molality.</p>
<p>And why is that APCHEM12? Shouldn’t it be
APCHEM08?</p>
<p>it’s more like…Leo says GERRRRRRRRRRRRRRRR…lol…u won’t forget it at least def not for tomorrow.</p>
<p>you can also say </p>
<p>OIL RIG</p>
<p>Oxidation is Loss of electrons
Reduction is Gain of electrons</p>
<p>do we have to right hydronium as [H3O] or can it be written as simply [H+]</p>
<p>also, whats the range on the FRQ for a five?</p>
<p>Because we’re all going to graduate from college…</p>
<p>…right? Um…well, maybe not ME, but you all.</p>
<p>My teacher said to use hydronium, just to be safe… But I dunno.</p>
<p>Is the MC on the real AP anything like the MC on the practice tests in the BARRON’S book?</p>
<p>I think the questions are REALLY random haha.
:/</p>
<p>In the electroplating of nickel, .200 faraday of electrical charge is passed through a solution of NiSo4. What mass of nickel is deposited?</p>
<p>eeek.
i am scared about reaction predictions</p>
<p>In response to Catalysis:</p>
<p>“Is the MC on the real AP anything like the MC on the practice tests in the BARRON’S book?”</p>
<p>i don’t think so… i mean, they’re similar, but it’s better to take past years’ tests vs. a barrons book if you can access the past tests… my teacher gave us 2 practice tests from a few years back, and those gave me a great idea of how the MC will be on the test</p>
<p>also, the Flynn MC books contain real MC ap questions, so if you have one of those (they’re purple), then that’s good too</p>
<p>There are only three of them though^^</p>
<p>My teacher gave us FR 1999, 2000, 2003, 2004, 2006, 2007 and 2007 Form B to be all completed by today. He assigned them several weeks ago.</p>
<p>He also gave us 1999 MC and some other year, some of the questions were hard/random. Like only 21% get it right.</p>
<p>Oh yeah, he has random 5s written on random answer sheets…ect.</p>
<p>How do you know right off the bat what pure substance has the highest melting point?</p>
<p>Here is the question: Of the following pure substances, which has the highest melting point?
a. S8
b. I2
c. SiO2
d. SO2
e. C6H6</p>
<p>SiO2 because it has covalent bonds</p>
<p>Oh yeah…too used to making college chatrooms, like MITEA12…sucks for all y’all not going to college for another year :P</p>
<p>Its SiO2 because you have to look at the intermolecular forces holding the molecules together. In the case of quartz, it is covalent network bonding which is the strongest and has the highest melting point! Pure substance means that there is no other molecule in the substance. For example substance A would be S8-S8-S8 and B would be I2-I2-I2… etc</p>