<p>did u put H3O for anything on the test</p>
<p>yeah uh on the question (section 1) where is talked about the vapor formed from crystals..was that condensation?</p>
<p>i think it was Cr, AG Pb and Rb are all insoluable in water im pretty sure. and the other choice FE isnt gonna do that much. I just thot of Cr being soluable cuz its commonly used in hydration</p>
<p>lol, okay.
on that one where it asks what CuO and H2 makes, what did you say?
the choices were:
Cu
H2O
Cu(OH)2
you can pick more than one</p>
<p>I don't think so. On the second to last you, did you get 4 mol carbon dioxide and 5 mol water?</p>
<p>I put H3O for the H2SO4 question because sulfuric acid is a strong acid, meaning it dissociates completely into H3O and HSO4-. Since H2SO4 is polyprotic, it dissociates again (to a very minute amount) with the equation HSO4- -> SO4^2- + H3O. Thus, overall, H3O has the greatest concentration. Also, I put Rb for the water question because it's an alkali metal and alkali metals react violently with water. BTW, all alkali metals are water-soluble (making them strong bases).</p>
<p>H doesnt form a compound with Ne right?</p>
<p>I am_ I picked the first two. </p>
<p>Thrills4ever I put Rb because it's the most active and everything else is a transition metal.</p>
<p>oh f uck ur right chillaxin it was Rb</p>
<p>I think H does form a compound with Ne. I put H can't form with Na for that one.</p>
<p>Goldfish, I put sublimation from that because the purple vapor formed was just gaseous Iodine molecules. I_am, I wasn't sure so I put all three. I remember doing a reactions quiz yesterday where you can right FeO + H2 as either Fe + H2O or Fe(OH)2 so I'm hoping that it's the same for CuO. And yeah, thrills4ever, H doesn't form anything with Ne.</p>
<p>For the Neon question, did anyone put T/T/CE?</p>
<p>I_am it was CuO2 + H20</p>
<p>so how can H form anything with sodium?</p>
<p>hahah yeah i put TTCE for that neon Q too</p>
<p>yea chillaxin TTCE for neon, it was right</p>
<p>cmon MORE Q's did u get 0.050M for anything</p>
<p>What do you guys think will be the curve for this test? How was it compared to other Chem tests in the past?</p>
<p>Yes, I got 0.050 mol for the PbI2 question.</p>
<p>I was hvn a problem with Na and Ne, but i thot about sodium hydrogen carbonate.</p>
<p>i hope the curve is okay, this test was alot better than octobers test</p>
<p>on the problem where it said Pb(NO3)2 + KI = PbI2, did you get 0.3 moles of PBI2</p>