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Calculate the heat of combustion:

1.C2H4(g)+3O2(g)===>2CO2(g)+2h20(L)

_____kJ/mol

2.2H2S(g)+3O2(g)===>2H2O(L)+2SO2(g)

_____kJ/mol

2 answers

Look up delta Hof for CO2 and H2O (and multily each by 2).
delta H rxn = (sum products)-(sum reactants).
+9059.9
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