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Calculate the enthalpy (ΔHo) of reaction (kJ) for the equation as written. If the answer is negative, enter the sign and then the magnitude.

2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(l) .

ΔHof (kJ/mol)

C2H2(g) 227

O2(g) 0

CO2(g) -393.5

H2O(l) -285.83

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