To balance the chemical equation for the combustion of propane, follow these steps:1. Write the unbalanced equation: C3H8 + O2 CO2 + H2O2. Balance the carbon atoms: C3H8 + O2 3CO2 + H2O3. Balance the hydrogen atoms: C3H8 + O2 3CO2 + 4H2O4. Balance the oxygen atoms: C3H8 + 5O2 3CO2 + 4H2OThe balanced chemical equation for the combustion of propane is:C3H8 + 5O2 3CO2 + 4H2O