Complete the following equations for the reaction between

Options

A. `Ca +H_(2)O`
B. `Ca(OH)_(2)+CI_(2)`
C. `BeO + NaOH`
D. `BaO_(2) +H_(2)SO_(4)`

Explanation

To complete the equations for the reactions mentioned, we will break down each reaction step by step.

### Step 1: Reaction between Calcium and Water
1. **Write the reactants**: Calcium (Ca) and Water (H₂O).
2. **Identify the products**: Calcium hydroxide (Ca(OH)₂) and Hydrogen gas (H₂).
3. **Write the balanced equation**:
\[
\text{Ca} + 2\text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2 + \text{H}_2
...