Is melting chocolate an endothermic or exothemic?

Freezing of ice cream is Exothermic, Because you must remove heat from the ice cream to freeze it. The Heat flow is negative when the ice cream is your system, you are moving the heat from the ice to the surroundings most likely a freezer. This is how a Freezer cools items it does not add cold (there is no such thing just heat) it removes heat from the item inside and convects it on to its self and eventually to the air, so the freezer is endothermic.