1. CH3COOH(aq) + KOH(aq) —> CH3COOK(aq) + H2O (l)
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Pb(NO3)2(aq) + KI (aq) —> PbI2 (s) (arrow down) + KNO3 (aq)
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AgNO3 (aq) + NaCl (aq) —> AgCl (s) (arrow down) + NaNO3 (aq)
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Mg(OH)2 (aq) + HCl (aq) —> MgCl2 (aq) + H2O (l)
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BaCl2 (aq) + Na2SO4 (aq) —> BaSO4 (s) (arrow down) + NaCl (aq)
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HBr (aq) + NaOH (aq) —> NaBr (aq) + H2O (l)
1 Answer
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1, 4, and 6 are neutralization reactions, they always have a salt plus water.
2, 3, and 5 are precipitation reactions, the “arrow down” is a clue that a precipitate is formed.
