<p>I didnt have a TT without a CE...which one was that?</p>
<p>oh... sorry, misread and panicked. :-P</p>
<p>When you have a true/true, then you can choose CE if it is applicable.</p>
<p>awww crap.. </p>
<p>TT isn't the same as CE? damnit</p>
<p>why even put CE as an option?? grrrrrrrrr</p>
<p>So what score am I looking at if I left 12 unanswered and maybe 3-4 wrong? I found the test to be hard in regard to the sheer number of involved questions in the one hour allotment. Am I only one?</p>
<p>how about that density one? g/mL...i wasn't sure</p>
<p>Hm, what was I thinking....</p>
<p>10 ml water occupies 35g...ethanol occupies 33g....(water density is 1 g/mL)
what is density of ethanol...</p>
<p>0.79 g/ml</p>
<p>i thought it was hard...and im pretty good at chem. yea, for me time isn't a huge issue because i get it done, but i know i made stupid mistakes because i go so quickly.</p>
<p>It weighed less, so It had to be less dense. .79g/ml was the only one that was lower than 1.000</p>
<p>i put .79 too!!!!</p>
<p>so WHAT was the gas that's not harmful to humans</p>
<p>My answer choices, I'm pretty sure were</p>
<p>NH3
NO2
SO2
CO2
H2S</p>
<p>I think I put Ammonia (NH3) cuz its water soluble and organic so its found every where. I know NO2 and SO2 make acid rain, and isnt all that global warming stuff about CO2? Plus I thought H2S smells bad, so was it that or NH3?</p>
<p>my reasoning was basically CO2 is breathed out by us so how harmful can it be? clearly, i am bound to be a chemist with that reasoning. lol.</p>
<p>i put .79 because i knew it had to be less dense than water</p>
<p>i put CO2 also</p>
<p>I don't think it's NH3 because that's found in waste material.... haha, and it's also known to kill goldfish. My goldfish!</p>
<p>For the question that asked what would be LEAST useful in the experiment which involved getting different concentrations of acids and bases.
The answer was (A) Bunsen burner because (B) an analytical balance would be needed to measure out the mass of the solid acid... I think. The bunsen burner would be useful for burning the ****ing test. thats right.</p>
<p>I remember thinking for a while on this problem between choices A and B</p>
<p>I put CO2 as well. You have to remember that SO2 and NO2 are components of acid rain. H2S is toxic. And NH3 is not an organic molecule. There is no carbon and all organic molecules have carbon as their backbone. </p>
<p>I put CO2 because we breath it out. So, how dangerous can it be? And if you've ever slept with covers all the way over your head, then you're breathing in some of that CO2.</p>
<p>EDIT: I got A for the experiment question as well. I know this because I've been running an acid-base reaction for chem olympics, and there is no way you need a Bunsen burner for that, but you do need a balance to help with stoichiometry.</p>
<p>good reasoning tux! how about one in the beginning about something with only a metal adn hydrogen atoms... i think i put hydrite because all i could think was metal hydrite..i dont know.</p>
<p>i put bunsen burner as well.</p>