What is the correct balance of the equation for the combustion of ethanol (CH3CH2OH - drinking alcohol)?- CH3CH2OH + 3O2 → 2CO2 + 3H2O- 3CH3CH2OH + 9O2 → 6CO2 + 12H2O- CH3CH2OH + O2 → CO2 + H2O- 2CH3CH2OH + 13O2 → 4CO2 + 6H2O