June SAT: Chemistry Post-Test Discussion

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<p>Yep, Fe and S mixture could be separated through magnet (and the other methods don’t work for it anyways)</p>

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[Enthalpy</a> of sublimation - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Enthalpy_of_sublimation]Enthalpy”>Enthalpy of sublimation - Wikipedia)</p>

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[Heat</a> of Sublimation - ChemWiki](<a href=“Heat of Sublimation - Chemistry LibreTexts”>Heat of Sublimation - Chemistry LibreTexts)</p>

<p>I feel like I’m hearing the hearts of many fellow SAT Chemistry test takers break whenever I post these. TT_TT</p>

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<p>@tamlin Highest melting point and btw, is your username based off the orchestra piece of the same name by any chance?</p>

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<p>Wait there’s another one wrong. I put heat of formation T___T I was like… “Heat of Sublimation? Lol they’re trying to trick us.” XD Because I’ve never heard of it in review books…</p>

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<p>:(</p>

<p>I didn’t know heat of sublimation existed…I thought the College Board cooked it up to trick us</p>

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<p>lol chewydog tryna make me feel all bad using quotes from repped websites</p>

<p>haha jk
thanks</p>

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<p>It is indeed! I never get tired of hearing it :)</p>

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<p>Whats a -10?</p>

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<p>what was the one with the greenhouse gases. i got TTCE</p>

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<p>nah, i got TT for the greenhouse gases one.
it’s true that CO2 is bad for environ.
and its true that CO2 forms acidic solution, because its an acidic anhydride.
but II is not explanation for I.</p>

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<p>Greenhouse gases lead to global warming not acid rain so it was TT. It was a tricky question because most people don’t seem to know the difference between the causes of global warming, ozone depletion, acid rain, etc.</p>

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<p>@tamlin: good to know someone else in the world appreciates it! :)</p>

<p>@harvard76: my O. Chem friend who also took the test today said the same thing as immadinosaur. I think dino is right on this one…I put TTCE because I knew both to be true but wasn’t sure about CE so just took a chance and slapped it on.</p>

232

<p>I had a brainfart moment and I put False for Statement 2. (CO2 forms acid)
LOL now that I think back I want to slap myself.</p>

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<p>Was VO2 option A?</p>

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<p>Was VO2 option A?</p>

<p>I think A was V2O and B was VO2. I just guessed haha.</p>

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<p>@LTangerine: The idea of a “brainfart” never ceases to amuse me XDDD never heard someone call that moment that</p>

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<p>@violinplayer the bb says a -10 is a 760</p>

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<p>Did anyone say NaAt (E) for one of them? Or did you put NaF (I think it was A)?</p>

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<p>That question’s answer has been confirmed to be NaF.</p>

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<p>Yup it is NaF :slight_smile: because of the equation that was like (charge)(charge)/Radius (not exactly this xDDD). they are all the same charges so the only thing that matters was the radius, NaF has the smallest radius so the bond is stronger. Also because F is electronegative</p>

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<p>Alright, thanks! Is there a compilation of answers anywhere? Too lazy to scroll through, guess I should help start one if there isn’t one already. :D</p>