Balancing Redox Reactions: Acidic Solutions Video Lessons

Concept: Balancing Redox Reactions: Acidic Solutions

# Problem: Balance each of the following redox reactions occurring in acidic aqueous solution.A. I−(aq)+SO42−(aq) → H2SO3(aq) + I2(s)Express your answer as a chemical equation. Identify all of the phases in your answer.

###### FREE Expert Solution

We are being asked to balance the given oxidation-reduction reaction. The reaction is under acidic conditionsWhen balancing redox reactions under acidic conditions, we will follow the following steps.

Step 1: Separate the whole reaction into two half-reactions

Step 2: Balance the non-hydrogen and non-oxygen elements first

Step 3: Balance oxygen by adding H2O to the side that needs oxygen (1 O: 1 H2O)

Step 4: Balance hydrogen by adding H+ to the side that needs hydrogen (1 H: 1 H+)

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###### Problem Details

Balance each of the following redox reactions occurring in acidic aqueous solution.

A. I(aq)+SO42−(aq) → H2SO3(aq) + I2(s)