The reaction provided is a combustion reaction of naphthalene (C10H8) with oxygen (O2). In complete combustion, naphthalene will produce carbon dioxide (CO2) and water (H2O).
From the provided options, the complete balanced reaction for the combustion of naphthalene is:
10CO2 + 8H2O
Therefore, the correct answer is:
10CO2 + 8H2O