Complete and balance the following redox reaction in acidic solution H₂O₂(aq) + Cr₂O72- (aq) → O₂(g) + Cr³+ (aq)

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Balancing Redox Reactions in Acidic Solutions**

This interactive tool allows students to practice balancing redox reactions in acidic solutions. The given reaction to balance is:

\[ \text{H}_2\text{O} (\text{aq}) + \text{Cr}_2\text{O}_7^{2-} (\text{aq}) \rightarrow \text{O}_2 (\text{g}) + \text{Cr}^{3+} (\text{aq}) \]

### Interface Features:

- **Input Panel:** Contains buttons for chemical species and numbers. These can be selected to enter into the equation to balance it.
  - **Chemical Species Buttons:** Include \(\text{OH}^-\), \(\text{O}\), \(\text{H}^+\), \(\text{Cr}^{3+}\), \(\text{H}_3\text{O}^+\), etc.
  - **Numerical Buttons:** Numbers 0-9 help in balancing coefficients.

- **Action Buttons:**
  - **Reset:** Clears the current inputs, allowing users to start over.
  - **Submit:** Evaluates the entered equation to check if it is balanced.

- **Display Area:** On the right, it shows the reaction that needs balancing.

### Instructions:

1. **Select** the appropriate chemical species and numbers from the input panel to balance the redox reaction.
2. **Adjust** each side of the equation until both mass and charge are balanced.
3. **Click Submit** to check your answer.

This exercise is designed to enhance understanding of redox reactions and improve equation-balancing skills essential for chemistry students.
Transcribed Image Text:**Balancing Redox Reactions in Acidic Solutions** This interactive tool allows students to practice balancing redox reactions in acidic solutions. The given reaction to balance is: \[ \text{H}_2\text{O} (\text{aq}) + \text{Cr}_2\text{O}_7^{2-} (\text{aq}) \rightarrow \text{O}_2 (\text{g}) + \text{Cr}^{3+} (\text{aq}) \] ### Interface Features: - **Input Panel:** Contains buttons for chemical species and numbers. These can be selected to enter into the equation to balance it. - **Chemical Species Buttons:** Include \(\text{OH}^-\), \(\text{O}\), \(\text{H}^+\), \(\text{Cr}^{3+}\), \(\text{H}_3\text{O}^+\), etc. - **Numerical Buttons:** Numbers 0-9 help in balancing coefficients. - **Action Buttons:** - **Reset:** Clears the current inputs, allowing users to start over. - **Submit:** Evaluates the entered equation to check if it is balanced. - **Display Area:** On the right, it shows the reaction that needs balancing. ### Instructions: 1. **Select** the appropriate chemical species and numbers from the input panel to balance the redox reaction. 2. **Adjust** each side of the equation until both mass and charge are balanced. 3. **Click Submit** to check your answer. This exercise is designed to enhance understanding of redox reactions and improve equation-balancing skills essential for chemistry students.
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