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OMG. I am going to FAIL Chem 12 exam tomorrow.; I know nothing!
Topic Started: Thursday 22-01-2009, 04:54 (456 Views)
MonstaRasta
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*Is crying in the corner*
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Kami
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Old Men
Redox Titrations?

At least that's what we're on...
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MonstaRasta
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We covered that in the last two weeks of actual learning classes.

It was done in 3 days! OMG OMG Stupid crunk Canadian teaching methods.
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Kami
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What's on your test then?
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MonstaRasta
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Mostly Equilibrium Calculations, acid/base reactions, thermo chemistry, organic chemistry and Redox half-reactions.

50 multiple choice, 50 short answers.
Edited by MonstaRasta, Thursday 22-01-2009, 05:25.
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Wakapanda Of Doom
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ONE OF THE ORIGINAL FUCKS
review some of the notes you have?

Chem isn't that heard, at least until the first few subject of organic chem
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MonstaRasta
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I dunno, I'm probably wigging out over nothing.

Organic Chem was learned in only 4 days or so, and all we learned was how to name and draw hydrocarbons.
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Kami
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Old Men
benzene rings? Phenol? Carboxyl groups? stuff like that?


If you haven't noticed, I'm also trying to see if I remember stuff for my mid term...
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MonstaRasta
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D= It's my final!

Just basic organics; like methyl, ethyl, whatever, cyclo whatnots and how to number them.
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Kami
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I like the way my teacher tested us on those groups. He gave us a gigantic drawn out organic compound (it was like a page long landscape) and made us look for all the groups...
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Adam
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Proto Fal'Cie
I have no idea what the hell you're talking about.

Unfortunately, bunny with a pancake on his head was not available for comment.
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Judge Doom
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how good of a test taker are you? be sure to use any and all info in the short answer section to help with the multiple choice and copy exact sections from the short answer questions to other short answer answers wherever you can. Multiple choice questions can sometimes help answer other questions as well when you are sure you have the right answer.
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MonstaRasta
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Thanks, and that's true.


What's messing me up is, I'm reviewing my old tests and notes, and I'm going over the "review" that my teacher handed out, and it's messed up. The review has NOTHING on what we learned and now I'm freaking out.
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Judge Doom
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well the sooner you accept the fact that you are as prepared as you can be and stop stressing about it the better you will sleep tonight at least. panicking and staying up all night cramming will more than likely make it worse. when you get up in the morning look at any formulas you will need and maybe some definitions and then hope for the best.
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MonstaRasta
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Thanks. Luckily, he's giving us 4 pages with whatever info on it too. *yawns* I'mma go to bed now. I can't stay up and sing to Rock Band 2 forever.
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Omgarm
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Troetelbeertje
Multiple choice on Chemistry? That's retarded, multiple choice questions don't teach you anything.
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Fermicelli
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Italian delight
Quote:
 
Mostly Equilibrium Calculations, acid/base reactions, thermo chemistry, organic chemistry and Redox half-reactions.


Hello! That's a whole lot of stuff you're supposed to learn, there. Just thermodynamics and organic chemistry combined is enough for 8 ECs here. Anyway, hopefully you know the basics as that is where it all starts.

Chemical equilibrium: keep in mind that k differs only per temperature. Also remember that k = concentration products over concentration reactants, and that you need to factorize for how many molecules are represented in the mixture. Also remember how you can find out the k for different temperatures. (Most ks are noted for 25C.)

Acid/base reactions: just keep your eyes on the table, very carefully check it twice to see if you indeed have the strongest acid or base available. Watch out for chlorine ions (Cl-), those like to screw your answer.

Thermodynamics: keep in mind the laws of thermodynamics. Mind the signs of your answers. Keep in mind variables which are functions of state (temperature, volume, pressure, internal energy, enthalpy, entropy, Gibbs free energy) and functions of the path (heat, work). A negative enthalpy means an exothermic reaction (energy is released from the system) and a positive means an endothermic process (energy is absorbed). Increase of temperature favours the endothermic process and inhibits the exothermic process. Negative entropy indicates that the system is becoming less chaotic, increased entropy indicates it is becoming more chaotic. Negative Gibbs free energy means a process is spontaneous, positive means a process is not spontaneous.

Organic chemistry: try to find the longest chain of carbons first. This means that the longest chain may not be linear, but that isn't a problem. Learn the order of significance of additional groups, so that you know how to call the substance. Start your numbering at the highest ranked group and work your way down. Keep in mind that double or triple bonds change the name of your substance and that you need to indicate where this bond is, too.

Redox half reactions: double check whether or not you have truly found the strongest oxidant or reductor. Remember that some reactions only occur if another substance is available (will be noted in your table). When constructing the final reaction do not forget to correct for the right amount of electrons. Ultimately you do not have a net gain or loss of electrons.
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Chet
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I am the clown.
Errr...

:yeah:
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Judge Doom
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Triforce Wisdom
Thursday 22-01-2009, 13:17
Quote:
 
Mostly Equilibrium Calculations, acid/base reactions, thermo chemistry, organic chemistry and Redox half-reactions.


Hello! That's a whole lot of stuff you're supposed to learn, there. Just thermodynamics and organic chemistry combined is enough for 8 ECs here. Anyway, hopefully you know the basics as that is where it all starts.

Chemical equilibrium: keep in mind that k differs only per temperature. Also remember that k = concentration products over concentration reactants, and that you need to factorize for how many molecules are represented in the mixture. Also remember how you can find out the k for different temperatures. (Most ks are noted for 25C.)

Acid/base reactions: just keep your eyes on the table, very carefully check it twice to see if you indeed have the strongest acid or base available. Watch out for chlorine ions (Cl-), those like to screw your answer.

Thermodynamics: keep in mind the laws of thermodynamics. Mind the signs of your answers. Keep in mind variables which are functions of state (temperature, volume, pressure, internal energy, enthalpy, entropy, Gibbs free energy) and functions of the path (heat, work). A negative enthalpy means an exothermic reaction (energy is released from the system) and a positive means an endothermic process (energy is absorbed). Increase of temperature favours the endothermic process and inhibits the exothermic process. Negative entropy indicates that the system is becoming less chaotic, increased entropy indicates it is becoming more chaotic. Negative Gibbs free energy means a process is spontaneous, positive means a process is not spontaneous.

Organic chemistry: try to find the longest chain of carbons first. This means that the longest chain may not be linear, but that isn't a problem. Learn the order of significance of additional groups, so that you know how to call the substance. Start your numbering at the highest ranked group and work your way down. Keep in mind that double or triple bonds change the name of your substance and that you need to indicate where this bond is, too.

Redox half reactions: double check whether or not you have truly found the strongest oxidant or reductor. Remember that some reactions only occur if another substance is available (will be noted in your table). When constructing the final reaction do not forget to correct for the right amount of electrons. Ultimately you do not have a net gain or loss of electrons.
You lost me at Hello >_>
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Banned yet Again
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Time Travelling Swordsman
lol chemistry. im so glad im done with all the chem i have to take. organic chem was a biatch
Edited by Banned yet Again, Thursday 22-01-2009, 18:06.
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