<p>Anyone who has the big dark blue book REAL SAT Subject Tests from college board(not the new one the official study guide for all subject tests or whatever it is) …</p>
<p>Question # 59.</p>
<p>Which of the following does NOT react with a dilute H2SO4 solution?
A)NaN03
B)Na2S
C)Na3PO4
D)Na2CO3
E)NaOH</p>
<p>The answer’s A, but I’m not sure why…
can someone explain it to me please
I know E is a neutralization reaction, and I think D produces CO2 gas and maybe B produces H2S gas, but I’m not sure about the rest.</p>
<p>And also, if someone can explain how to figure out the answers to questions 5,7,8, and 9 I’d really appreciate it 
Here’s the Problem…sorryT.T I don’t know how else to put it:</p>
<p>(OH-) + (5) → (CrO4)^2- + (H+) →(6)→
(Ba)^2+ + (Cr2O7)^2- + (H2O) ←(8)←→(7)→(SO2), (H+)→
(BaSO4) + (9) + (H20)</p>
<p>A)CrO7^2-
B)H+
C)OH-
D)Cr^3+
E)Ba^2+</p>
<p>I just plugged answers in and tried balancing the equations, but that took sooo long…</p>