12 60 70 8 9 10 110 13 140 3 2 5 QUESTION 2 What is the role played by NO in the following mechanism? 03 + NO → NO2 + 02 NO2 + O→ NO + O2 OA. spectator OB. product OC reactant OD. catalyst OE intermediate 10 4 15 160 17
12 60 70 8 9 10 110 13 140 3 2 5 QUESTION 2 What is the role played by NO in the following mechanism? 03 + NO → NO2 + 02 NO2 + O→ NO + O2 OA. spectator OB. product OC reactant OD. catalyst OE intermediate 10 4 15 160 17
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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![### Chemistry Quiz
#### Question 2
**What is the role played by NO in the following mechanism?**
\[ \text{O}_3 + \text{NO} \rightarrow \text{NO}_2 + \text{O}_2 \]
\[ \text{NO}_2 + \text{O} \rightarrow \text{NO} + \text{O}_2 \]
**Options:**
- **A.** Spectator
- **B.** Product
- **C.** Reactant
- **D.** Catalyst
- **E.** Intermediate
#### Question 3
**The OH radical reacts with itself in a disproportionation type reaction according to the equation:**
\[ \text{OH} + \text{OH} \rightarrow \text{H}_2\text{O} + \text{O} \]
This rate constant at room temperature is \(2.69 \times 10^2 \, \text{M}^{-1} \text{s}^{-1}\). If the initial concentration is \(0.0055 \, \text{M}\), what is the time required for the reaction (in seconds)?
**Note:** The answer should be entered with 3 significant figures; do not enter units. Examples include 1.23e-8 and 1.23e8 and -1.23e-4 and 1.23e0.
**Answer:**
\[ \_\_\_\_\_\_ \]
#### Question 4
**Which of the following changes leads to a decrease in reaction rate?**
**Options:**
- **A.** Increase the reactant concentration.
- **B.** Increase the frequency of collisions.
---
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Transcribed Image Text:### Chemistry Quiz
#### Question 2
**What is the role played by NO in the following mechanism?**
\[ \text{O}_3 + \text{NO} \rightarrow \text{NO}_2 + \text{O}_2 \]
\[ \text{NO}_2 + \text{O} \rightarrow \text{NO} + \text{O}_2 \]
**Options:**
- **A.** Spectator
- **B.** Product
- **C.** Reactant
- **D.** Catalyst
- **E.** Intermediate
#### Question 3
**The OH radical reacts with itself in a disproportionation type reaction according to the equation:**
\[ \text{OH} + \text{OH} \rightarrow \text{H}_2\text{O} + \text{O} \]
This rate constant at room temperature is \(2.69 \times 10^2 \, \text{M}^{-1} \text{s}^{-1}\). If the initial concentration is \(0.0055 \, \text{M}\), what is the time required for the reaction (in seconds)?
**Note:** The answer should be entered with 3 significant figures; do not enter units. Examples include 1.23e-8 and 1.23e8 and -1.23e-4 and 1.23e0.
**Answer:**
\[ \_\_\_\_\_\_ \]
#### Question 4
**Which of the following changes leads to a decrease in reaction rate?**
**Options:**
- **A.** Increase the reactant concentration.
- **B.** Increase the frequency of collisions.
---
*Please click "Save and Submit" to save and submit your answers. Click "Save All Answers" to save all answers.*
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