in part b of iht, depending on which salt you added, you would have seen either an increase or a decrease in the temperature of the water. ally completed part b of experiment iht. they labeled their system as the dissolution of salt and their surroundings as water. if ally recorded a increase in temperature after adding salt, was the reaction endothermic or exothermic in regards to their system? how do we know whether it was endothermic or exothermic? group of answer choices