a. Choose the item that correctly describes the oxidizing agent and the reducing agent in the reaction shown. Al2O3 (s) + 3C0(9) → 2Al(s) + 3CO2(g) C changes from oxidation number +2 to +4. The CO is the reducing agent. Al changes from oxidation number +2 to 0. The Al2 O3 is the oxidizing agent. C changes from oxidation number +2 to +4. The CO is the oxidizing agent. Al changes from oxidation number +3 to 0. The Al2 O3 is the reducing agent. C changes from oxidation number +2 to 3. The CO is the reducing agent. Al changes from oxidation number +3 to 0. The Al2 O3 is the oxidizing agent. C changes from oxidation number +2 to +4. The CO is the reducing agent. Al changes from oxidation number +3 to 0. The Al2 O3 is the oxidizing agent.

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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Certainly! Below is a transcription and explanation for educational purposes:

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**Question:**

b. Choose the item that correctly describes the oxidizing agent and the reducing agent in the reaction shown.

\[ \text{BaS(s) + 4H}_2\text{O}_2\text{(aq) } \rightarrow \text{ BaSO}_4\text{(s) + 4H}_2\text{O(l)} \]

**Options:**

1. ○ S changes from oxidation number \(-2\) to \(+6\). The BaS is the reducing agent.
    \\
   O changes from oxidation number \(-4\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the oxidizing agent.

2. ○ S changes from oxidation number \(+2\) to \(+4\). The BaS is the reducing agent.
    \\
   O changes from oxidation number \(-1\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the oxidizing agent.

3. ○ S changes from oxidation number \(-2\) to \(+6\). The BaS is the oxidizing agent.
    \\
   O changes from oxidation number \(-4\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the reducing agent.

4. ○ S changes from oxidation number \(-2\) to \(+6\). The BaS is the reducing agent.
    \\
   O changes from oxidation number \(-1\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the oxidizing agent.

---

**Explanation:**

This question is related to identifying oxidizing and reducing agents based on changes in oxidation numbers during the given chemical reaction.

- **Oxidation** refers to an increase in oxidation number.
- **Reduction** refers to a decrease in oxidation number.
- **Reducing Agent**: The substance that donates electrons (is oxidized).
- **Oxidizing Agent**: The substance that accepts electrons (is reduced).

Each option evaluates the change in oxidation numbers for sulfur (S) and oxygen (O) in the reaction, identifying which reactant acts as an oxidizing agent and which as a reducing
Transcribed Image Text:Certainly! Below is a transcription and explanation for educational purposes: --- **Question:** b. Choose the item that correctly describes the oxidizing agent and the reducing agent in the reaction shown. \[ \text{BaS(s) + 4H}_2\text{O}_2\text{(aq) } \rightarrow \text{ BaSO}_4\text{(s) + 4H}_2\text{O(l)} \] **Options:** 1. ○ S changes from oxidation number \(-2\) to \(+6\). The BaS is the reducing agent. \\ O changes from oxidation number \(-4\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the oxidizing agent. 2. ○ S changes from oxidation number \(+2\) to \(+4\). The BaS is the reducing agent. \\ O changes from oxidation number \(-1\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the oxidizing agent. 3. ○ S changes from oxidation number \(-2\) to \(+6\). The BaS is the oxidizing agent. \\ O changes from oxidation number \(-4\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the reducing agent. 4. ○ S changes from oxidation number \(-2\) to \(+6\). The BaS is the reducing agent. \\ O changes from oxidation number \(-1\) to \(-2\). The \( \text{H}_2\text{O}_2 \) is the oxidizing agent. --- **Explanation:** This question is related to identifying oxidizing and reducing agents based on changes in oxidation numbers during the given chemical reaction. - **Oxidation** refers to an increase in oxidation number. - **Reduction** refers to a decrease in oxidation number. - **Reducing Agent**: The substance that donates electrons (is oxidized). - **Oxidizing Agent**: The substance that accepts electrons (is reduced). Each option evaluates the change in oxidation numbers for sulfur (S) and oxygen (O) in the reaction, identifying which reactant acts as an oxidizing agent and which as a reducing
**Question a:**

Choose the item that correctly describes the oxidizing agent and the reducing agent in the reaction shown.

Reaction: \( \text{Al}_2\text{O}_3(s) + 3\text{CO}(g) \rightarrow 2\text{Al}(s) + 3\text{CO}_2(g) \)

Options:
1. \( \text{C} \) changes from oxidation number +2 to +4. The CO is the reducing agent.  
   \( \text{Al} \) changes from oxidation number +2 to 0. The \( \text{Al}_2\text{O}_3 \) is the oxidizing agent.

2. \( \text{C} \) changes from oxidation number +2 to +4. The CO is the oxidizing agent.  
   \( \text{Al} \) changes from oxidation number +3 to 0. The \( \text{Al}_2\text{O}_3 \) is the reducing agent.

3. \( \text{C} \) changes from oxidation number +2 to +3. The CO is the reducing agent.  
   \( \text{Al} \) changes from oxidation number +3 to 0. The \( \text{Al}_2\text{O}_3 \) is the oxidizing agent. 

4. \( \text{C} \) changes from oxidation number +2 to +4. The CO is the reducing agent.  
   \( \text{Al} \) changes from oxidation number +3 to 0. The \( \text{Al}_2\text{O}_3 \) is the oxidizing agent.

---

**Question b:**

Choose the item that correctly describes the oxidizing agent and the reducing agent in the reaction shown.

Reaction: \( \text{BaS}(s) + 4\text{H}_2\text{O}_2(aq) \rightarrow \text{BaSO}_4(s) + 4\text{H}_2\text{O}(l) \)

Options:
1. \( \text{S} \) changes from oxidation number -2 to +6. The BaS is the reducing agent.  
   \( \text{O} \) changes from oxidation number 4 to -2. The \( \text{H}_2\text{O}_
Transcribed Image Text:**Question a:** Choose the item that correctly describes the oxidizing agent and the reducing agent in the reaction shown. Reaction: \( \text{Al}_2\text{O}_3(s) + 3\text{CO}(g) \rightarrow 2\text{Al}(s) + 3\text{CO}_2(g) \) Options: 1. \( \text{C} \) changes from oxidation number +2 to +4. The CO is the reducing agent. \( \text{Al} \) changes from oxidation number +2 to 0. The \( \text{Al}_2\text{O}_3 \) is the oxidizing agent. 2. \( \text{C} \) changes from oxidation number +2 to +4. The CO is the oxidizing agent. \( \text{Al} \) changes from oxidation number +3 to 0. The \( \text{Al}_2\text{O}_3 \) is the reducing agent. 3. \( \text{C} \) changes from oxidation number +2 to +3. The CO is the reducing agent. \( \text{Al} \) changes from oxidation number +3 to 0. The \( \text{Al}_2\text{O}_3 \) is the oxidizing agent. 4. \( \text{C} \) changes from oxidation number +2 to +4. The CO is the reducing agent. \( \text{Al} \) changes from oxidation number +3 to 0. The \( \text{Al}_2\text{O}_3 \) is the oxidizing agent. --- **Question b:** Choose the item that correctly describes the oxidizing agent and the reducing agent in the reaction shown. Reaction: \( \text{BaS}(s) + 4\text{H}_2\text{O}_2(aq) \rightarrow \text{BaSO}_4(s) + 4\text{H}_2\text{O}(l) \) Options: 1. \( \text{S} \) changes from oxidation number -2 to +6. The BaS is the reducing agent. \( \text{O} \) changes from oxidation number 4 to -2. The \( \text{H}_2\text{O}_
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