Problem: Complete and balance the following equations.Cr2O72−(aq) + I−(aq) → Cr3+(aq) + IO3–(aq) (acidic solution)Express your answer as a chemical equation. Identify all of the phases in your answer.

FREE Expert Solution
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FREE Expert Solution

To balance the given oxidation-reduction reaction (acidic solution):

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


Step 1: Separate into two half-reactions:

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


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

Cr2O72– 2Cr3+                                                        I(aq) IO3(aq)

(Cr: balanced)                                                                           (I: balanced)

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Problem Details

Complete and balance the following equations.

Cr2O72−(aq) + I(aq) → Cr3+(aq) + IO3(aq) (acidic solution)

Express your answer as a chemical equation. Identify all of the phases in your answer.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Balancing Redox Reactions: Acidic Solutions concept. You can view video lessons to learn Balancing Redox Reactions: Acidic Solutions Or if you need more Balancing Redox Reactions: Acidic Solutions practice, you can also practice Balancing Redox Reactions: Acidic Solutions practice problems .

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Based on our data, we think this problem is relevant for Professor Casanova's class at NVC.