OCTOBER 2010 Chemistry

<p>There are 128 replies in the Math 2 thread lol. I think we can start discussing.</p>

<p>BTW the answer was isomer. Can anyone answer my questions?</p>

<p>ok thanks</p>

<p>yes potassium permangenate is purple
the 4 unpaired was the transition metal, which ever had 3d^6 at the end
dont remember the H3O+ question that clearly srry</p>

<p>What other choices were there for the most common ion in H3SO4 + H2O problem?</p>

<p>Oh does anyone know which substance produces a gas when added to acetic acid?</p>

<p>I said H3O+ was the most common ion, and I said that sodium carbonate thingy for the gas haha, I kinda assumed that maybe it’d give off CO2? </p>

<p>and I put d6 for 4 unpaird electrons and i used isomer and isotopes in my answer</p>

<p>For the first one, it was what is in coal and is reason for acid rain, I said sulfur?</p>

<p>then the +3 or +5 i said P and for a basic oxide I put Ca</p>

<p>How about y’all?</p>

<p>I think I got the H3O+ one wrong…as well as the gas one.
But for the other answers I put the same thing as 45fly</p>

<p>For the T/F one about the Oxygen reacting with Magnesium… was that TT CE or just TT?</p>

<p>@45fly
i put same for all of those</p>

<p>I put Hydrogen for the basic solution thing because it makes OH-</p>

<p>no i dont think it was hydrogen. almost all the metal oxides (except aluminium oxide and zinc oxide) are basic oxides</p>

<p>i think i got same for the most of them!</p>

<p>what did you guys put for the question that asked
what determines the characteristic of an atom?
i said mass number?</p>

<p>How many wrong can we get for an 800?</p>

<p>and also!
number 102
which is
Most solutes dissolve BECAUSE the interaction between ions…
(excuse my short-term memory, i can’t remeber the question!)
I think i said TTCE?</p>

<p>i believe electron structure determines characteristic</p>

<p>@ilikebananas</p>

<p>it depends, but probably 4wrong?</p>

<p>@ joon
is that 4 blank or 4 wrong with the penalty ?</p>

<p>@LemonTeaRex
WHAT!!?
NO WAY Man!
[Answers.com</a> - What determines the chemical bonding characteristic’s of an atom](<a href="http://wiki.answers.com/Q/What_determines_the_chemical_bonding_characteristic’s_of_an_atom]Answers.com"&gt;http://wiki.answers.com/Q/What_determines_the_chemical_bonding_characteristic’s_of_an_atom)</p>

<p>i’m not sure if this is relevant.
but ?!?
i first thought it would be valence electrons
but it wasn’t one of the choices
so i went with mass number (proton number)</p>

<p>Same, I said electronic structure … weird wording!</p>

<p>@bananas
oh i meant 4 wrong with the penalities!
But It really varies all the time!
Most of the prep books say the raw score of 77~85 is 800</p>

<p>@joon: that may be. I was thinking general trends in characteristics. I think I may have just been played by the SAT’s tricky wording…</p>