<p>but how did you get that (0.5)? I left that one blank.</p>
<p>yea, tm2000, the answer is what u put and it did ask for the one that is not true</p>
<p>"Think about it this way. If you dropped a copper penny into hot water, does it explode (or fizz, or do anything special)? And isn't our Statue of Liberty made of copper originally? It has since then changed color, indicating that it has reacted to copper oxide."</p>
<p>that's b/c of acid rain. when copper penny is dropped into water, i don't think it does anything. and isn't it copper, not coppper oxide? </p>
<p>copper is freaking insoluble</p>
<p>i dunt remember any other questions</p>
<p>Cu + O2 -> CuO
Cu + H+ + HSO4- -> CuSO4 + H2
However, CuSO4 is soluble, so if that was actually affected by acid rain, then I think our Statue of Liberty would be disintegrated by now. :)</p>
<p>If I can find a website supporting my argument, I will promptly post it up, but I feel a bit lazy right now. :P</p>
<p>no. find it</p>
<p>Oh, and copper oxide is insoluble.</p>
<p>This is coming from a kid who has practically memorized all of the predicting products equations from 1980-2004 for the AP Chem test. :)</p>
<p>COPPER, NOT COPPER OXIDE.</p>
<p>your talking to the ap chem mahstah.</p>
<p>my dad's a chemist, i just asked him. he says it will NOT REACT VIGOROUSLY with water. "mr. i lose", you lose</p>
<p>Look. This topic has been emphasized in my two years of chemistry study. Here's the proof:</p>
<p>"The Statue of Liberty is composed of several metals. The exterior layer of the statue is made of a metal alloy consisting of bronze and copper. Oxygen gas is a free diradical in the atmosphere, resulting in a highly reactive molecule. Copper is oxidized by the diradical causing the color of the statue to change from bright reddish-brown to malachite green."</p>
<p>from <a href="http://www.missouri.edu/%7Echemrg/216f01/group_5_project.html%5B/url%5D">http://www.missouri.edu/~chemrg/216f01/group_5_project.html</a></p>
<p>Did I say it would react with water? NO. Oh my gosh, so defensive. I was proving that copper was reactive with the AIR. I did not say it was going to do anything with WATER. I was questioning why everyone thought that part of the question was so hard by saying that copper does NOT NOT NOT NOT explode, fizz, or bubble or do ANYTHING when you drop it into hot water.</p>
<p>Oh my god.</p>
<p>omg. </p>
<p>look. PURE copper + hot water (consider it pure) = no significant reaction.</p>
<p>stop talking about the statue of liberty. you're taking in conditions with acid and other chemicals.</p>
<p>omg lol. </p>
<p>at least we got that question right.</p>
<p>It's actually kind of funny that we were both talking about the two different statements though. You with the water and me with the air...</p>
<p>how do u do the hydrate one or whatever. u have like a moilecule and a dot then water...was never taught how to do that</p>
<p>teach me how to calculate the partial pressures given the moles of O2 and N2 in an 1.5atm vessel!!</p>
<p>it gave you the grams of water. 9 or something. all you do is find the moles of water (9g/18gramspermole = 1/2). so it lost 1/2 moles of water or something.i forgot how the rest goes. i got 10 as the coefficient though</p>
<p>u take the mole fraction of each and multiply it by the total pressure (1.5)</p>
<p>partial pressures......</p>
<p>mole fraction (of something) * total pressure (of everything) = partial pressure (of something)</p>
<p>i need a life. i'm going. latez
good luck everyone.</p>
<p>Dang...triple 800s on all my chem practice sat IIs in princeton review....I think I got a low 700 on this one :(</p>