In acidic solution, the sulfate ion can be used to react with a number of metal

Question

In acidic solution, the sulfate ion can be used to react with a number of metal ions. One such reaction is SO42-(aq) + Sn2 + (aq) rightarrow H2S03(aq) + Sn4 + (aq) Since this reaction takes place in acidic solution, H2O(1) and H + (aq) will be involved in the reaction. Places for these species are indicated by the blanks in the following restatement of the equation: S042-(aq) + Sn2 + (aq) + ___ rightarrow H2S03(aq) + Sn4 + (aq) + ___ What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(1) and H + (aq) in the appropriate blanks. Enter the equation coefficients in order separated by commas (e. g. , 2, 2, 1, 4, 4, 3). Potassium permanganate, KMnO4, is a powerful oxidizing agent. The products of a given redox reaction with the permanganate ion depend on the reaction conditions used. In basic solution, the following equation represents the reaction of this ion with a solution containing sodium fluoride: MnO4-(aq) + F-(aq) rightarrow MnO2(s) + F2(aq) Since this reaction takes place in basic solution, H2O(1) and OH-(aq) will be shown in the reaction. Places for these species are indicated by the blanks in the following restatement of the equation: MnO4-(aq) + F-(aq) + ___ rightarrow MnO2(s) + F2(aq) + ___ What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(1) and OH-(aq) in the blanks where appropriate. Enter the equation coefficients in order separated by commas (e. g. , 2, 2, 1, 4, 4, 3).

Explanation / Answer

SO2- (aq) + Sn2+ (aq) ---> H2SO3 (aq) + Sn4+ (aq)

H2O + SO2- (aq) ---> H2SO3 (aq) + 2e-

Sn2+ (aq) ---> Sn4+ (aq) + 2e-

then combine equation and check to make sure it balances

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