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.

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

Cr₂O₇^2–_(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.