A) Use standard enthalpies of formation to calculate ?H?rxn for the following reaction.
B)Use standard enthalpies of formation to calculate ?H?rxn for the following reaction. CH4(g)+2O2(g)?CO2(g)+2H2O(g)
C) Use standard enthalpies of formation to calculate ?H?rxn for the following reaction.
I tried A) 1365.96kJ B) -889.8kJ C) 1151.82kJ but those seem to be the wrong answers.
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