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Problem: Identify the oxidizing and reducing agents.Cr2O2−7(aq)+I−(aq)→Cr3+(aq)+IO−3(aq) (acidic solution)Express your answers as chemical expressions separated by a comma.

FREE Expert Solution

To identify oxidizing and reducing agents in the given oxidation-reduction reaction (acidic solution):

Cr2O72–(aq) + I(aq) Cr3+ (aq)+ IO3(aq)


To do so, we need to identify the change in oxidation state for each element in the reaction. 

Recall the mnemonic for redox reactions:

Loss Electrons Oxidation Reducing Agent

Gain Electrons Reduction Oxidizing Agent


This means the element that gains electrons/reduced is the oxidizing agent while the element that loses electrons/oxidized is the reducing agent.


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Problem Details

Identify the oxidizing and reducing agents.

Cr2O2−7(aq)+I−(aq)→Cr3+(aq)+IO−3(aq) (acidic solution)

Express your answers as chemical expressions separated by a comma.