1. The Unbalanced Equation:

C₅H₁₂ + O₂ → CO₂ + H₂O

2. Balancing the Equation:

* Carbon (C): There are 5 carbon atoms on the left and 1 on the right. Multiply CO₂ by 5.

* Hydrogen (H): There are 12 hydrogen atoms on the left and 2 on the right. Multiply H₂O by 6.

* Oxygen (O): Now we have 16 oxygen atoms on the right (10 from CO₂ and 6 from H₂O). To balance, multiply O₂ on the left by 8.

The Balanced Equation:

C₅H₁₂ + 8O₂ → 5CO₂ + 6H₂O

3. The Coefficient of Water:

The coefficient of water (H₂O) in the balanced equation is 6.