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Generally a process is considered favorably spontaneous if the process releases heat to the surroundings. The following three processes are necessary to dissolve a solute such as NaCl in a solvent such as water. Which of these is considered an exothermic process?
I. Solute-Solute interactions must be broken.
II. Solvent-Solvent interactions must be broken.
III. Solute-Solvent interactions are formed.
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