11132060 11132060 28-12-2022 Chemistry Answered Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3: (a) 2H₂(g) + O₂(g) → (b) 2C₂H₂(g) +50₂(8) 2H₂O(1) 4CO₂(g) + 2H₂O(1)