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Using the table below that shows some values for standard enthalpy changes of combustion, calculate the standard enthalpy change of the reaction, C(s) + 2H2(g) rightwards arrowCH4(g)

Substance

ΔH°f (kJ/mol)

C(s)

−394

CH4(g)

−890

H2(g)

−286

-2225 kJ/mol

-470 kJ/mol

+2225 kJ/mol

+470kJ/mol

1 answer

+470 kJ/mol

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