<p>@yballer i thought the change in concentration one was TT (but not CE) bc the 2nd statements said that NaCl dissociates or something…</p>
<p>@yballer I think then it would be FT or something, no? The second statement was that Na is soluble at 20 degrees Celsius. Also, for the one about metal, I put TF because I think metals have only positive ions with the sea of electrons.</p>
<p>Edit: Sorry I meant TT, haha. I think concentration is amount of solute in comparison to amount of solvent, while saturation is just the capacity of the solvent to hold solute… so I don’t know if having a precipitate would increase the concentration or not, but I think it does.</p>
<p>What is generally the curve for the SAT Chemistry exam? As in, what is usually the max you can get wrong to still get an 800?</p>
<p>Also, was the exam harder than usual?</p>
<p>@capitalamerica yes that’s correct i think because metals become cations only </p>
<p>what about the question about which compound acts as an acid or a base (amphoteric)? i don’t remember what i put but the options were like Cl-, H2SO4, and some others i think…</p>
<p>@2015er Edit: I’m wrong. I have no idea now. >.></p>
<p>I don’t remember the answer choices because I just realized that the two I considered (and remember to be answer choices) are actually BOTH amphoteric. Now I’m kind of scared that I misread one of the options. Does anyone remember what the other choices were/what they got? For some reason I feel like I saw both HCO3- and NH3, which are both amphoteric substances… ><</p>
<p>Is May 22nd when we hear back?</p>
<p>@capitalamerica I put HCO3- for that question. I’m not sure if I misread it or not?</p>
<p>@blubrrybanana22 HCO3- is indeed amphoteric. I don’t remember what the other choices were because I remember NH3 being on their for some reason. :/</p>
<p>@capitalamerica I think NH3 was on the list but I don’t think NH3 is amphoteric. Isn’t it just basic? </p>
<p>@2015er I’m starting to believe so but it’s rather confusing. Throughout my chemistry course at school, I’ve always considered NH3 a key amphoteric substance next to H2O. The thing is, we never really see NH2- except for ammine groups in Organic Chemistry.</p>
<p>Also, Barron’s states that both NH3 and HCO3- are amphoteric substances… so I’m still very confused.</p>
<p>@capitalamerica that’s really strange…i’m confused too now LOL</p>
<p>there was a question that involved sig. figs. - how many did you put in your answer? </p>
<p>I don’t remember but it was something like 1.29. I hadn’t done sig figs since the first month of AP Chemistry and didn’t think it would actually be on the test; however, I think there was some addition going on so I just followed the least amount of decimal points which was up to the hundredths.</p>
<p>what’s the most you can miss to get an 800?</p>
<p>Depends on the curve. Usually 3-5 but last year in June it was at least 6 wrong for an 800. </p>
<p>Which sucks for me considering I didn’t have time to doublecheck uncertain answers. :’(</p>
<p>dang it. already missed the buret question and a couple others 
</p>
<p>I had solved the PR book completely. (an old edition -probably 2011) and I felt underprepared for today’s test.
Was it harder than usual?</p>
<p>I honestly thought there was so much balancing that it was difficult to finish on time. fingers crossed for a generous curve</p>
<p>@roshnib I would definitely say so. Although this was the first time taking the Collegeboard test, I found it actually harder than the Princeton Review by a mile solely because of the time consuming balancing and the novel pure facts necessary.</p>