Question

Given+the+following+data:++2C2H6(g)+++7O2(g)+→+4CO2(g)+++6H2O(l)+++++++++++++++++++++++++++++++++++++++++H+=+-3120+kJ++C(s)+++O2(g)→CO2(g)++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++H+=+-394+kJ++2H2(g)+++O2(g)→2H2O(l)+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++H+=+-572+kJ++Use+Hess’s+law+to+calculate+H+for+the+reaction+++++++++++2C(s)+++3H2(g)+→+C2H6(g

Answer 1

Answer:

don't know sorry for this ask another one