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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![**Redox Reaction Balancing in Basic Solution**
Complete and balance the following redox reaction in basic solution:
\[ \text{Cr}_2\text{O}_7^{2-}(\text{aq}) + \text{Hg}(\text{l}) \rightarrow \text{Hg}^{2+}(\text{aq}) + \text{Cr}^{3+}(\text{aq}) \]
**Input Options for Balancing:**
- **Charges:**
- Negative charges: 4-, 3-, 2-, 1-
- Positive charges: +, 1+, 2+, 3+, 4+
- **Numbers:**
- 0 to 9
- **States and Symbols:**
- Parentheses: ( )
- Arrow: →
- States: (s), (l), (g), (aq)
- **Elements and Ions:**
- H, H\(^+\), H\(_3\text{O}^+\)
- Cr
- Hg
- O
- OH\(^-\)
### Steps to Balance:
1. **Identify the Oxidation and Reduction Half-Reactions:**
- Determine the changes in oxidation states to identify which species are oxidized and which are reduced.
2. **Balance Elements and Charges:**
- Use the given input options to make adjustments to coefficients and charges in half-reactions to balance elements and charges.
3. **Combine the Balanced Half-Reactions:**
- Ensure both mass and charge are balanced in the overall reaction.
4. **Adjust for Basic Solution:**
- Add OH\(^-\) as needed to both sides of the equation to neutralize H\(^+\) ions and form water, ensuring the solution remains basic.
Following these steps will guide you in balancing the given redox reaction properly.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faeef920a-b7fc-42c4-a405-16f92aebf3b1%2F7a20d0f6-2be9-4029-81c9-a46cd7d52034%2Fz5y3kz7_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Redox Reaction Balancing in Basic Solution**
Complete and balance the following redox reaction in basic solution:
\[ \text{Cr}_2\text{O}_7^{2-}(\text{aq}) + \text{Hg}(\text{l}) \rightarrow \text{Hg}^{2+}(\text{aq}) + \text{Cr}^{3+}(\text{aq}) \]
**Input Options for Balancing:**
- **Charges:**
- Negative charges: 4-, 3-, 2-, 1-
- Positive charges: +, 1+, 2+, 3+, 4+
- **Numbers:**
- 0 to 9
- **States and Symbols:**
- Parentheses: ( )
- Arrow: →
- States: (s), (l), (g), (aq)
- **Elements and Ions:**
- H, H\(^+\), H\(_3\text{O}^+\)
- Cr
- Hg
- O
- OH\(^-\)
### Steps to Balance:
1. **Identify the Oxidation and Reduction Half-Reactions:**
- Determine the changes in oxidation states to identify which species are oxidized and which are reduced.
2. **Balance Elements and Charges:**
- Use the given input options to make adjustments to coefficients and charges in half-reactions to balance elements and charges.
3. **Combine the Balanced Half-Reactions:**
- Ensure both mass and charge are balanced in the overall reaction.
4. **Adjust for Basic Solution:**
- Add OH\(^-\) as needed to both sides of the equation to neutralize H\(^+\) ions and form water, ensuring the solution remains basic.
Following these steps will guide you in balancing the given redox reaction properly.
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