Two solutions at 25 C were mixed in a beaker. A precipitate formed and temperature of the new solution dropped to 19 C. a. Did the amount of energy
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Question

Two solutions at 25 C were mixed in a beaker. A precipitate formed

and temperature of the new solution dropped to 19 C.


a. Did the amount of energy contained by the system increase, decrease, or
remain the same? Justify your answer.
b. Was the chemical reaction that took place endothermic or exothermic?
c. Did the amount of energy contained by the surroundings increase,
decrease, or remain the same? Justify your answer.

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