<p>did anyone else think that test was unusually easy? or at least easier than it usually is? it didn’t have any specific questions about radioactive decay or organic chemistry…(thank goodness)</p>
<p>does anyone know the answer to the question about which gases can be used to displace water? I. O2 II. H2, III. HCL ?</p>
<p>O2 and H2 can be formed by water displacement.</p>
<p>so did everone else put ttce for the very last ttce question?</p>
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<p>I put T,T,CE. I believe that’s correct because CO2 is nonpolar (true) and it is a linear molecule (true). It’s linear arrangement causes the dipoles to cancel each other out.</p>
<p>^yea </p>
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<p>What was the classification question where it was brittle and conducts electricity when molten or something</p>
<p>I have a quick question about one of the Part A sections. I distinctly remember five of the choices to have been…
oxidation, combustion, sublimation, neutralization, reduction, condensation
However, that’s 6. Was there no choice for oxidation? I can’t remember what I put for several of the corresponding questions.</p>
<p>also what was the good lab procedures EXCEPT…</p>
<p>hopp - ionic</p>
<p>xaari - oxidation was not an answer</p>
<p>hopp - you try burning a graduated cylinder without it melting…</p>
<p>did anyone remember the nuclear chem question about whether an electron would be relesed?</p>
<p>yetti, im pretty sure it is because its pretty much beta particles</p>
<p>released during beta decay</p>
<p>Eric: Thanks. One less thing to worry about.
I remember I left 4 blank toward the end, in the mid-#70s because I didn’t have time. Was the nuclear question somewhere near the end? I hope I didn’t accidentally skip it.</p>
<p>eric7-- so the answer was something like burinin it under the hood or something</p>
<p>also what about the classification question where it was brittle and conducts electricity when molten or something</p>
<p>i dont think it directly stated that it was a nuclear question, it was like one of those I, II, and III type questions</p>
<p>it was something along the lines of “which of these are properties of electrons”</p>
<p>Choices were like: it is 1/3 of the mass of the atom (wrong)
it is released during nuclear decay (right)
can’t remember the other one</p>
<p>lol i already replied, its an ionic substance, like salt</p>
<p>it conducts electricity when melted
it is brittle
good conductor when dissolved (eg water)</p>
<p>For molten, that was NaCl, right? (Or perhaps just ionic…I can’t remember.)
Oh, I put I and II for the nuclear one! The radioactivity and the other choice, just not the 1/3 mass.</p>
<p>yea, i thought it was just ionic, but im not too sure either, but either way, it’s pretty obvious that if you know NaCl, you’d know that’s ionic too :P</p>
<p>eric7, it is combustion that is not the answer.</p>
<p>Because one was pure carbon turning into CO2…an oxidation reaction, I remember specifically filling that out</p>
<p>eric 7, i believe it’s ionic solid (ie NaCl)</p>