CH4(g) + 2O2(g)  CO2(g) + 2H2O(l) ΔHo = -890.5 kJ. What would be the ΔHo...

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CH4(g) + 2O2(g)  CO2(g) + 2H2O(l) ΔHo = -890.5 kJ.

What would be the ΔHo for the reaction ½ CH4(g) + O2(g)  ½ CO2(g) + H2O(l)

What would be the ΔHo for ½ CO2(g) + H2O(l)  ½ CH4(g) + O2(g)

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