Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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On this educational page, we'll explore how to determine the initial reactants in a chemical reaction based on the given amounts of products and leftovers.

**Chemical Equation:**
\[
\_\_ \, \text{C}_2\text{H}_2 + \_\_ \, \text{O}_2 \rightarrow \_\_ \, \text{CO}_2 + \_\_ \, \text{H}_2\text{O}
\]

**Legend:**  
- Gray = Carbon (C)  
- Red = Oxygen (O)  
- White = Hydrogen (H)

**Question:**  
What are the amounts before the reaction?

**Options:**

|   | C₂H₂ | O₂ |
|---|------|----|
| A | 2    | 10 |
| B | 12   | 10 |
| C | 10   | 9  |
| D | 8    | 4  |

**Diagram Explanation:**

The diagram depicts several molecules, representing a post-reaction scenario:

- **Carbon Dioxide (CO₂):** Each molecule consists of one gray sphere (C) between two red spheres (O).  
- **Water (H₂O):** Each molecule consists of one red sphere (O) between two white spheres (H).

Observe and count the quantities and arrangements of molecules to determine the appropriate initial reactant amounts from the given options.
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Transcribed Image Text:On this educational page, we'll explore how to determine the initial reactants in a chemical reaction based on the given amounts of products and leftovers. **Chemical Equation:** \[ \_\_ \, \text{C}_2\text{H}_2 + \_\_ \, \text{O}_2 \rightarrow \_\_ \, \text{CO}_2 + \_\_ \, \text{H}_2\text{O} \] **Legend:** - Gray = Carbon (C) - Red = Oxygen (O) - White = Hydrogen (H) **Question:** What are the amounts before the reaction? **Options:** | | C₂H₂ | O₂ | |---|------|----| | A | 2 | 10 | | B | 12 | 10 | | C | 10 | 9 | | D | 8 | 4 | **Diagram Explanation:** The diagram depicts several molecules, representing a post-reaction scenario: - **Carbon Dioxide (CO₂):** Each molecule consists of one gray sphere (C) between two red spheres (O). - **Water (H₂O):** Each molecule consists of one red sphere (O) between two white spheres (H). Observe and count the quantities and arrangements of molecules to determine the appropriate initial reactant amounts from the given options.
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