1994 SAT chem question

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<p>It’s number 59 on the 1994 SAT Chem subject test I need help with. I got it right, which makes me very happy since only 16 percent of the people got it, but i just guessed lol. I know sodium nitrate is the precipitate when you combine certain bases and solids, but thats it.</p>

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<p>It would be A since NaNO3 when reacted with H2SO4 creates two strong acids making the reactant side more heavily favored and not likely to take place.</p>