What are the products formed when an aqueous solution of magnesium bicarbonate is boiled ?

Options

A. `MgCO_(3),H_(2)O,CO_(2)`
B. `Mg(HCO_(3))_(2), H_(2)O`
C. `Mg(OH)_(2),H_(2)O`
D. `Mg, CO, H_(2)O`

Explanation

To determine the products formed when an aqueous solution of magnesium bicarbonate is boiled, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Chemical Formula**:
The chemical formula for magnesium bicarbonate is \( \text{Mg(HCO}_3\text{)}_2 \).

2. **Understand the Reaction Upon Boiling**:
When magnesium bicarbonate is heated (or boiled), it undergoes thermal decomposition. The bicarbonate ions decompose to form carbonates, carbon dioxide, and water.

3. **Write the Decomposition Reaction**:
The decomposition reaction can be represented as:
\[ \text{Mg(HCO}_3\text{)}_2 \, (aq) \rightarrow \text{MgCO}_3 \, (s) + \text{CO}_2 \, (g) + \text{H}_2\text{O} \, (l) \]
Here, \( \text{MgCO}_3 \) (magnesium carbonate) is formed as a solid precipitate, \( \text{CO}_2 \) (carbon dioxide) is released as a gas, and \( \text{H}_2\text{O} \) (water) remains in the solution.

4. **Identify the Products**:
From the reaction, we can identify the products formed:
- Magnesium carbonate (\( \text{MgCO}_3 \))
- Carbon dioxide (\( \text{CO}_2 \))
- Water (\( \text{H}_2\text{O} \))

5. **Conclusion**:
Therefore, when an aqueous solution of magnesium bicarbonate is boiled, the products formed are magnesium carbonate, carbon dioxide, and water.

### Final Answer:
The products formed when an aqueous solution of magnesium bicarbonate is boiled are:
- Magnesium carbonate (\( \text{MgCO}_3 \))
- Carbon dioxide (\( \text{CO}_2 \))
- Water (\( \text{H}_2\text{O} \))