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Consider the following thermochemical equations. Reaction HBr(g) H(g) + Br(g) H2(g) 2 H(g) Brz(8) - Br(g) 4,H/kJ molt 365.7 436.0 193.9 What is A. H for the reaction below? H2(g) + Brz(8) HBr(g) Give your answer in kJ moll, accurate to one decimal place. Do not include units in your answer. : Number kl mort The standard enthalpy of combustion of CH 2() is -3,920 kJ mol-1 at 298.15 K. What is the standard enthalpy of formation, A, H. of CH2(1) at 298.15 K? Give your answer in kJ mol-, rounded to the nearest kilojoule. Do not include units as part of your answer. Data Standard enthalpy of formation (in kJ mol-) -394 Substance CO2(g) H2O(1) -286 kJ mol-1 The standard enthalpy of formation of CH 2(0) is AH = Number