Explain what is the value for dh of the reaction

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Reference no: EM13647232

A chemical reaction took place inside of a coffee cup calorimeter. The 70.0g of 25 degrees C water cooled to 17.5 degrees C during the reaction. What is the value for ΔH of the reaction?

A. -520 J

B. +520 J

C. -2200 J

D. +2200 J

Reference no: EM13647232

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