Write balanced equations for the following reactions in acid solution. (a) P4 (s) + Cl- (aq) → PH3 (g) + Cl2 (g) (b) MnO4- (aq) + NO2- (aq) → Mn2+ (aq) + NO3- (aq) (c) HBrO3 (aq) + Ni (s) → HBrO2 (aq) + Bi2O3 (s) (d) CrO42- (aq) + SO32- (aq) → Cr3+ (aq) + SO42- (aq)

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Q: balance the equation:

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