`CaC_(2)` and `H_(2)O` react to produce:

Options

A. `CH_(4)`
B. `C_(2)H_(2)`
C. `C_(2)H_(4)`
D. `C_(2)H_(6)`

Answer

To solve the problem of what products are formed when calcium carbide (CaC₂) reacts with water (H₂O), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this reaction are calcium carbide (CaC₂) and water (H₂O).

2. **Understand the Reaction**: Calcium carbide reacts with water to produce acetylene (C₂H₂) and calcium hydroxide (Ca(OH)₂). This is a hydrolysis reaction where water breaks down the calcium carbide.

3. **Write the Chemical Equation**: The unbalanced chemical equation for the reaction is:
\[ \text{CaC}_2 + \text{H}_2\text{O} \rightarrow \text{C}_2\text{H}_2 + \text{Ca(OH)}_2 \]

4. **Balance the Chemical Equation**:
- On the left side, we have 1 calcium (Ca), 2 carbon (C), and 2 hydrogen (H) from water.
- On the right side, we have 1 calcium (Ca), 2 carbon (C) from acetylene, and 2 hydroxide ions (OH) from calcium hydroxide, which gives us 2 hydrogen (H).
- The equation is already balanced as:
\[ \text{CaC}_2 + 2\text{H}_2\text{O} \rightarrow \text{C}_2\text{H}_2 + \text{Ca(OH)}_2 \]

5. **Identify the Products**: The products of the reaction are acetylene (C₂H₂) and calcium hydroxide (Ca(OH)₂).

### Final Answer:
When calcium carbide (CaC₂) reacts with water (H₂O), it produces acetylene (C₂H₂) and calcium hydroxide (Ca(OH)₂).

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