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 answer the question "On heating sodium hydrogen carbonate, the products formed are," we will follow these steps:

### Step 1: Identify Sodium Hydrogen Carbonate
Sodium hydrogen carbonate is chemically represented as NaHCO₃. It is commonly known as baking soda.

**Hint:** Remember that sodium hydrogen carbonate is also referred to as baking soda.

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

**Hint:** Thermal decomposition is a reaction where a compound breaks down into two or more products when heated.

### Step 3: Write the Decomposition Reaction
The thermal decomposition of sodium hydrogen carbonate can be represented by the following chemical equation:
\[ 2 \text{NaHCO}_3 (s) \rightarrow \text{Na}_2\text{CO}_3 (s) + \text{CO}_2 (g) + \text{H}_2\text{O} (g) \]
This equation shows that when two moles of sodium hydrogen carbonate are heated, they produce one mole of sodium carbonate (Na₂CO₃), one mole of carbon dioxide (CO₂), and one mole of water (H₂O).

**Hint:** Pay attention to the coefficients in the balanced equation; they indicate the ratio of reactants to products.

### Step 4: Identify the Products
From the decomposition reaction, the products formed upon heating sodium hydrogen carbonate are:
1. Sodium carbonate (Na₂CO₃)
2. Carbon dioxide (CO₂)
3. Water (H₂O)

**Hint:** The products include a solid (sodium carbonate), a gas (carbon dioxide), and a vapor (water).

### Step 5: Conclusion
In conclusion, when sodium hydrogen carbonate is heated, it decomposes to form sodium carbonate, carbon dioxide, and water.

**Final Answer:** The products formed on heating sodium hydrogen carbonate are sodium carbonate (Na₂CO₃), carbon dioxide (CO₂), and water (H₂O).

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