<p>shaheiruddin, I think you confused mass with volume.</p>
<p>The nucleus does constitute almost all of the mass, but it is very dense, and takes up very little space.</p>
<p>Pretty sure it was TTCE…</p>
<p>dammit i cant believe i made a stupid mistake like that</p>
<p>Hydrogen atom to scale: [url=<a href=“Hydrogen Atom Scale Model”>Hydrogen Atom Scale Model]Hydrogen</a> Atom Scale Model<a href=“It%20doesn’t%20work%20with%20Firefox,%20for%20some%20reason.%20At%20least%20not%20my%20Firefox.”>/url</a></p>
<p>Anyone remember anything else from the test?</p>
<p>I might cancel sigh…</p>
<p>haha, I’m back, and this question was answered 6 or 7 pages before. It was TTCE because the point of the original Rutherford experiment was that he discovered that most of the space inside an atom is empty space and there was this very small nucleus that was positive and deflected the negative particles.</p>
<p>Also, the answer has to be KOH for that because NH4+ is a strong acid by the definition of Bromsted Lowry. Thus, to neutralize it, you would need a strong base, which is KOH.</p>
<p>yea i thought it was TTCE as well…</p>
<p>wat was the answer to that cold ice water question</p>
<p>one of the choices was crystillazaiton</p>
<p>and some other stoichimietry question on Co2 O2 and CO</p>
<p>I don’t remember if I wrote TTCE or TT. I often forget to put CE on the test. I only remember finding one CE today…</p>
<p>What’s the exact question?</p>
<p>ya i put KOH… NH3 is a base so ya dats how i thought it</p>
<p>Crystallization was what I put, I think.</p>
<p>There was a question on a copper wire, covered with sulfur, and heated. Choices (EXCEPT question):product is black, solid, copper wire disappears, electron transfers…</p>
<p>That one was electron transfers because you can’t observe that directly. It’s not qualitative.</p>
<p>Verddil for that one I put something like the product formed has more mass than the copper.</p>
<p>there was a question on how something was put on a god damn ice bath wat was the answer</p>
<p>The question said “All of the following is a possible observation EXCEPT:”</p>
<p>This question was tricky because it didn’t require any actual knowledge. You just needed to identify which of the answer choices wasn’t an observation. Just by looking at the products, you can’t tell that electrons were transfered. So that’s the answer.</p>
<p>The ice water one was three only</p>
<p>3) The concentration of [N2] gas decreases.</p>
<p>on a scale of 1-10 wat would be the difficulty of this exam?</p>
<p>I thought 8.5</p>
<p>hmm, I don’t remember that question in particular, but for the copper question. It has to be be copper loses 2 electrons because copper has more than one oxidation state and you would not know which one just by observing the reaction with your naked eye.</p>
<p>Compared to the practice test I took it was very difficult.</p>
<p>I wonder how much the curve will be adjusted to fit the perceived difficulty…the opinion on here seems to be that it deviated alot from the normal level.</p>
<p>the enthalphy question anyone remember? it explain plz</p>