The heat of combustion for C2H6 (30.07 g/mol) is -1559.5 kJ/mol. Calculate the heat of reaction (in kJ) when 8.24 g C2H6 is combusted. Be sure to include the correct sign in your answer (+ or -) and do not put a space between the sign and the number. Do not include units in your answer. Round answer to the hundredths place.

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