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The question wit Kinetic Molecular Theory. not sure, but I put something with volume.
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<p>Yah. When you see Kinetic you should automatically associate with temperature. Some (can't be too obvious here ~ CB watching) contain temperature. Wrong.</p>
<p>ok guys the isomer one was easy. It was C because it has double bonds(it was the only one with double bonds) and those cant eb broken for an isomer</p>
<p>ice is less dense than water and yes ice molecules are pushed farther apart. TTCE</p>
<p>Double bonds can become isomers. </p>
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Allene and propyne are examples of isomers containing different bond types. Allene contains two double bonds, while propyne contains one triple bond. - Wiki
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<p>Isomer</a> - Wikipedia, the free encyclopedia</p>
<p>Isomers are defined as compounds with identical molecular formula but different structural formula.</p>
<p>i meant to say that they never are broken for isomers usually. My ap chem teacher told me that, and i am in a bio and we are learned about isomer and my book said teh same. </p>
<p>I am sure i am right, it was the one with double bonds.</p>
<p>also in case anyone was wondering, the 1.5 partial pressure of .2 moles of i forgot and .1 mole of oxygen was .5 moles of oxygen. you divided .1/.3 get 1/3 and multiply by 1.5=.5 oxygen</p>
<p>the one that said titration in question 13 or 14 was buret</p>
<p>the ph7 of .001 M Na(oh) was B .001 M of HCL</p>
<p>CsF was the most electronegative so that was the answer</p>
<p>the one that said seperate precipitate from liquid or something for question 14 or 15 was filter paper i think</p>
<p>Your teacher is right. Double bonds and triple bonds are not capable of optical isomer. Search up cis- and trans- isomerism.</p>
<p>and im also pretty sure it was heat of vaporization = whatever for the conversion of liquid water to gas.</p>
<p>It was the one with the chart.</p>
<p>This is pretty much all i can remember and im 99% sure i got all these right, anyone else remember anything? im bone dry now</p>
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[quote]
also in case anyone was wondering, the 1.5 partial pressure of .2 moles of i forgot and .1 mole of oxygen was .5 moles of oxygen. you divided .1/.3 get 1/3 and multiply by 1.5=.5 oxygen
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<p>Is that one 1.0 Nitrogen or 0.5 Oxygen (both are correct but which one does the correct answer say)? I forgot the choices.</p>
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[quote]
and im also pretty sure it was heat of vaporization = whatever for the conversion of liquid water to gas.
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<p>Yap. I got 40+ something kJ? 7.5 + a larger number.</p>
<p>the correct one was .5 is the partial pressure of oxygen</p>
<p>proof:</p>
<p>.2 moles of nitrogen
.1 mole of oxygen</p>
<p>.1+.2=.3</p>
<p>.1/.3=1/3</p>
<p>Ratio of moles=ratio of partial pressure</p>
<p>1/3 X 1.5=.5 oxygen</p>
<p>C . Partial pressure of oxygen is .5</p>
<p>Yah. Oh phew...</p>
<p>oh and the S 2+ one was a little confusing.</p>
<p>I put 38 protons.</p>
<p>S? S always has 16 protons, and in this case, since it is 2+, it has 14 electrons. Protons do not change.</p>
<p>the question is hazy to me i sorta forgot what it was asking but all the answer choices had the number 38 in them.</p>
<p>it was like S 2+ undergoing alpha decay or something i cant rememeber.</p>
<p>Wow you guys are amazing... after each exam I forget approx 99% of the questions... XD</p>
<p>so shifu yoda how do you think you did on the chem subject test? i felt pretty good, but i did make like 5-6 very educated guesses.i feel confident at at least a 700.
But i failed math 1 and math 2 for sure.</p>
<p>lol i guess i have good memory or the questions scared the **** out of me so badly that i was traumatized and would never forget them</p>
<p>I don't know. I took Chem like a year ago and got 680. This time I studied my *** off. I have no idea. I am expecting 700+ (conservative estimate).</p>
<p>so based on previous tests, how many can i get wrong and get a 700? i only omitted one....it was the NA(OH) and HC2H3O2 question (what was that btw)....</p>
<p>I think you can -6~8 and can still get 800. I think it was H2O + CO2 + Na acetic acid etc...</p>
<p>Was it B?</p>