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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Hi,
I am doing a practice test and need to check my answers. All of this is for Chem 101
Please see attached:
![**Question 40**
How many grams of water are produced when 10.0 grams of O₂ react with excess H₂?
\[ 2 \, \text{H}_2 + \text{O}_2(g) \rightarrow 2 \, \text{H}_2\text{O} \]
- 11.25 grams
- 20 grams
- 46 grams
- 180 grams
- 360 grams
---
**Question 41**
In the following equation, what is the coefficient of oxygen (O₂) when the equation is balanced?
\[ \_\_ \, \text{C}_3\text{H}_8 + \_\_ \, \text{O}_2 \rightarrow \_\_ \, \text{CO}_2 + \_\_ \, \text{H}_2\text{O} \]
- 2
- 3
- 4
- 5
- 10
---
**Question 42**
Which of these does not form a negative ion in an ionic compound?
- Br
- N
- Se
- I
- Al](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80366bbd-a758-40e7-b9ec-8d2e3445db54%2Fd583720e-6a70-4379-a3e7-421865344a9f%2F7yvilbs_processed.png&w=3840&q=75)
Transcribed Image Text:**Question 40**
How many grams of water are produced when 10.0 grams of O₂ react with excess H₂?
\[ 2 \, \text{H}_2 + \text{O}_2(g) \rightarrow 2 \, \text{H}_2\text{O} \]
- 11.25 grams
- 20 grams
- 46 grams
- 180 grams
- 360 grams
---
**Question 41**
In the following equation, what is the coefficient of oxygen (O₂) when the equation is balanced?
\[ \_\_ \, \text{C}_3\text{H}_8 + \_\_ \, \text{O}_2 \rightarrow \_\_ \, \text{CO}_2 + \_\_ \, \text{H}_2\text{O} \]
- 2
- 3
- 4
- 5
- 10
---
**Question 42**
Which of these does not form a negative ion in an ionic compound?
- Br
- N
- Se
- I
- Al
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