H2O2(aq) + 2KI(aq) + H2SO4(aq) → I2(s) + K2SO4(aq) + 2H2O(l) Has oxidation and reduction occurred? If oxidation and reduction has occurred? If oxidation and reduction has occurred define the change in oxidation numbers for the following atoms and define what is undergoing oxidation and reduction:   I[ ? ] → I[ ? ] O[ ? ] → O[ ? ]

Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 60E
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Procedure: Add 0.1M H2O2 and several drops of 6M H2SO4 to 0.1M KI.

Observation: Solution goes from a light amber to a dark, dark Blue.

 

H2O2(aq) + 2KI(aq) + H2SO4(aq) → I2(s) + K2SO4(aq) + 2H2O(l)

Has oxidation and reduction occurred?

If oxidation and reduction has occurred? If oxidation and reduction has occurred define the change in oxidation numbers for the following atoms and define what is undergoing oxidation and reduction:

 

I[ ? ] → I[ ? ]

O[ ? ] → O[ ? ]

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