<p>^ Energy diagrams do not have anything to do with rate. You are right.</p>
<p>actually in AP chem u learn about slow and fast reactions when u learn rate determining reactions and stuff. a reaction is slower if there is a higher activation energy.</p>
<p>Actually, exothermic processes are usually spontaneous in the forward direction.</p>
<p>@ autumnkim I think what you put was C actually cause thats what I 'remember ’ putting down.</p>
<p>
</p>
<p>Not accordng to [Reaction</a> rates](<a href=“http://www.800mainstreet.com/7/0007-004-reac_rate2.htm]Reaction”>Reaction rates). That means I missed that one.</p>
<p>I stand by my original opinion:</p>
<p>
</p>
<p>silverturtle can you explain that more please</p>
<p>Don’t you guys know this equation: ln(k2/k1) = (Ea/R)[1/T1 - 1/T2]</p>
<p>k (the reaction RATE constant) is clearly dependent on Ea.</p>
<p>^ Oh hell. Maybe.
Another one wrong lol.</p>
<p>remember any more questions?
here are some I remember</p>
<ol>
<li>(T/F question)the diagram with gas and vapor in the inverted tube over the water. was the atm pressure more than pressure inside? </li>
<li>Fe3+ + 3OH- goes to Fe(OH)3?</li>
<li>not necessarily true when KClO4 blahhh: saturated soln?</li>
<li>least abundant in atmosphere? N2/O2/CO2/etc</li>
<li>BEI2 thing in the end: need 2 Flourines?</li>
<li>solid to gas: sublimation</li>
<li>delta H for 0degrees to 100 and then vapor: 49?</li>
</ol>
<p>Was the question about air composition H2?</p>
<p>Oh, I just remembered: I put TT (but not CE) for the NH3 problem. NH3 isnt polar because of hydrogen bonding, its polar because of the unequal force? pull?.. is what i thought</p>
<p>Yes, it was H2. H2 is too flammable to be abundant in the atmosphere.</p>
<ol>
<li>ATM pressure was more.</li>
<li>yes</li>
<li>yes</li>
<li>H2</li>
<li>yes</li>
<li>yes</li>
<li>i don’t remember.</li>
</ol>
<p>
</p>
<p>I think that one was H2.</p>
<p>Edit: According to <a href=“http://en.wikipedia.org/wiki/Atmosphere_of_Earth[/url]”>http://en.wikipedia.org/wiki/Atmosphere_of_Earth</a>, that is correct.</p>
<p>
</p>
<p>Is that consistent with False/True for the question?</p>
<p>how many tt ce’s did you get?</p>
<p>The NH3 problem didn’t ask for why it was polar.
It said: NH3 is highly soluble in water BECAUSE NH3 forms hydrogen bonds with H2O molecules.</p>
<p>It’s T T CE. I put T F. I thought the NH3 is soluble because it becomes ammonium and hydroxide ions, but apparently that only occurs to a slight extent.</p>
<p>@silverturtle: i can’t remember, sorry =/</p>
<p>what about the ones with the I II III
i got two of all I II III
and two I and II or II and III</p>