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Give an example of a combustion reaction...

Give an example of a combustion reaction whose standard enthalpy change in equal to the standard enthalpy of formation of the compound formed in the reaction.

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The combustion reaction for C (s, graphite) is: C(s, graphite)`+O_(2)(g)toCO_(2)(g)`. This reaction also represents the formation reaction of `CO_(2)(g)`. Therefore, at `25^(@)C`, the standard heat of combustion of C (s, graphite)= the standard heat of formation of `CO_(2)(g)`.
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