On heating sodium hydrogen carbonate, the products formed are

Options

A. `Na_(2)O+CO_(2)+H_(2)O`
B. `Na_(2)CO_(3)+CO_(2)`
C. `Na_(2)CO_(3)+H_(2)O+CO_(2)`
D. `Na_(2)CO_(3)+H_(2)O`

Answer

To solve the question regarding the products formed when sodium hydrogen carbonate (NaHCO3) is heated, we can follow these steps:

### Step 1: Identify the compound
Sodium hydrogen carbonate is also known as sodium bicarbonate, and its chemical formula is NaHCO3.

### Step 2: Understand the reaction
When sodium hydrogen carbonate is heated, it undergoes thermal decomposition. This means that it breaks down into different substances when subjected to heat.

### Step 3: Write the decomposition reaction
The thermal decomposition of sodium hydrogen carbonate can be represented by the following chemical equation:
\[ 2 \text{NaHCO}_3 (s) \rightarrow \text{Na}_2\text{CO}_3 (s) + \text{CO}_2 (g) + \text{H}_2\text{O} (g) \]

### Step 4: Identify the products
From the reaction, we can see that the products formed are:
- Sodium carbonate (Na2CO3)
- Carbon dioxide (CO2)
- Water (H2O)

### Step 5: Conclusion
Thus, the correct answer to the question is that on heating sodium hydrogen carbonate, the products formed are sodium carbonate, carbon dioxide, and water.

The correct option is:
Na2CO3 + H2O + CO2.