Na2CO3 (aq) → 2 Na+ (aq) + CO32- (aq)
a) KNO3(aq) → K+ (aq) + NO3- (aq)
Na+ (aq) + NO3- (aq) → NaNO3 → all nitrates are soluble → aqueous
K+ (aq) + CO32- (aq) → K2CO3 → soluble carbonates → aqueous
b) NaBr(aq) → Na+ (aq) + Br- (aq)
Na+ (aq) + Br- (aq) → NaBr → soluble halide → aqueous
Na+ (aq) + CO32- (aq) → Na2CO3 → soluble carbonate → aqueous
Which solution will form a precipitate when mixed with a solution of aqueous Na2CO3?
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