<p>the choices to the 9g of H20(l) were
I. 1mol H atom
II. 8.5g O
II. 11.2L</p>
<p>I choose (A) I only because it would be 8g O for II and water is not in its vapor form in III.</p>
<p>what'd you guys put for the smallest ion, i put Mg2+ but i have no idea why</p>
<p>i think i put I, II, and III but i dont know</p>
<p>that should be right~ I feel pretty dumb for missing that... <em>sigh</em></p>
<p>yea the answer is A , although i chose all 3 =(</p>
<p>yea i put Mg+2 just cause it would lose the most electrons</p>
<p>Mg 2+ is correct
they all have the same number of electrons, but Mg has more protons than the others so it pulls its electrons in more.</p>
<p>It is Mg2+ because cations are smaller than anions~ if you think about it cations loose electrons so the remaining electrons are pulled closer to the positive nucleus. anions gain electrons and get biggre</p>
<p>which of the following has the smallest radius....</p>
<p>(a) F-
(b) O 2-
(c) N 3-
(d) NA +
(e) MG +2</p>
<p>the answer is Mg2+ I know I'm right because Cl- and all the other - gets bigger when they gain electrons and Mg2+ gets smaller because its lost 2 electrons and the greater positive charge pulls the electrons closer to the radii</p>
<p>which of the following is the least harmful in the atmosphere to humans...</p>
<p>(a) CO2
(b) NO2
(c) NH4
(d) SO4</p>
<p>CO2 because its harmless, we eat and sleep it</p>
<p>awww....i think i put F- or something. i definetly wasnt thinking on that one.</p>
<p>What did you put for the electrolysis of water? I put T, T, CE because if you think about it the positive entropy does have alot to do with the positive H because spontaneity (G)=H-TS at standard conditions, so basically it had to be endothermic given that the reaction's not spontaneous. But then you might argue it's T, T</p>
<p>I just realized the question on "which gas is least harmful in the atmosphere to humans?" is a *<strong><em>ing political question. I bet the liberals behind Collegeboard are trying to all make us think global warming is a huge threat and its actually happening with all the excess CO2 we give off. *</em></strong>ing pricks.</p>
<p>i ruined myself on that test. it was so easy, i was just dumb.</p>
<p>It's okay because you're theSATmaster, so I'm sure you aced the actually SATs unlike me.</p>
<p>for the electrolysis of water one, i put T T</p>
<p>no, i dint do so well on those.</p>
<p>"What did you put for the electrolysis of water? I put T, T, CE "</p>
<p>is it T,T,CE or T, T???</p>
<p>yea, don't feel bad...i did terrible too and i like chem. but yea..you're the SAT MASTER...no worries.</p>
<p>i think T, T is right.</p>
<p>whats -9 gonna covert to?</p>
<p>what what the 2nd part of the question for the water TT/TTCE one</p>
<p>the first part was like the elctrolysiss of water is endothermic....b/c.....</p>
<p>entropy increases</p>