Problem: Separate this redox reaction into its component half-reactions. 3O2 + 4Co → 2Co2O3 Use the symbol e- for an electron.Oxidation half-reaction: Reduction half-reaction: 

FREE Expert Solution

LEO → Loses electrons = Oxidation

GER → Gain electrons = Reduction

Separating the half-reactions:  

Inspecting the Oxidation state of Co and O

For O:

Reactant: O2 → elemental state → OS = 0

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Problem Details

Separate this redox reaction into its component half-reactions. 

3O2 + 4Co → 2Co2O3 

Use the symbol e- for an electron.

Oxidation half-reaction: 

Reduction half-reaction: 

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