1. Combustion Reaction:

Ethane (C₂H₆) burns in the presence of oxygen (O₂) to produce carbon dioxide (CO₂) and water (H₂O). The balanced chemical equation is:

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

2. Mole Ratio:

The equation shows that for every 2 molecules of ethane (C₂H₆) that react, 4 molecules of carbon dioxide (CO₂) are produced.

3. Calculation:

Since you have two ethane molecules, you'll produce double the amount of CO₂:

2 ethane molecules * (4 CO₂ molecules / 2 ethane molecules) = 4 CO₂ molecules

Therefore, 4 carbon dioxide molecules will be formed from two ethane molecules.