Write the balanced chemical equations with state symbols for the following reactions :
Ethane burns in oxygen to form carbon dioxide and water (gas).

Explanation

To write the balanced chemical equation for the combustion of ethane in oxygen, we will follow these steps:

### Step 1: Write the unbalanced equation
The unbalanced equation for the combustion of ethane (C2H6) in oxygen (O2) to form carbon dioxide (CO2) and water (H2O) is:
\[ \text{C}_2\text{H}_6(g) + \text{O}_2(g) \rightarrow \text{CO}_2(g) + \text{H}_2\text{O}(g) \]

### Step 2: Count the number of atoms of each element
- **Reactants:**
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