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Use a table of Standard Reduction Potentials to predict if a reaction will occur

ID: 587076 • Letter: U

Question



Use a table of Standard Reduction Potentials to predict if a reaction will occur between Mn metal and I2(s), when the two are brought in contact via standard half-cells in a voltaic cell.

If a reaction will occur, write a balanced net ionic equation for the reaction, assuming that the product ions are in aqueous solution. If no reaction will occur, leave all boxes blank.

___+___------> ___+ ___

Enter electrons as e-. Use smallest possible integer coefficients. If a box is not needed, leave it blank.

Explanation / Answer

oxidation half reaction

Mn (s) --> Mn2+ + 2 e-

Reduction half reaction

I2 (s) + 2 e- --> 2I- (aq)

net reaction

Mn (s) + I2 (s) --> Mn2+ (aq) + 2I- (aq)