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- 1 decade agoFavorite Answer
enthalpy change is the energy change when it comes to reactions.
if im not wrong, it is just a normal reaction and a (delta)H being written on the right
(delta)H is the enthalpy change
if enthalpy change is negative, it means that the reaction is exothermic(the reaction gives out heat)
if enthalpy change is positive, it means that the reaction is endothermic(the reaction absorbs heat)
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