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Chemistry, 25.11.2020 14:20 jailinealvarado24

A typical cold pack involves mixing a solid salt, such as ammonium nitrate, with water. In other words, the cold pack you might buy at a pharmacy to put on a sprained ankle is just a dissolution chemical reaction. This reaction must be:: a. Exothermic and spontaneous
b. Endothermic and spontaneous
с. Endothermic requiring work
d. Exothermic requiring work
e. Not enough information

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