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    Chemistry of an ice pack

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    In a short paragraph, describe what is occurring at the molecular level in a cold pack.

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    A cold pack is a bag of water with a plastic tube/container of Ammonium nitrate (although some cold packs use ammonium chloride). Once you break the tube, the ammonium nitrate mixes with the water creating an endotermic reaction. Endothermic reactions are reactions that absorb heat. Therefore, there is ...

    Solution Summary

    Ever wonder why a cold pack can get so cold so fast? This solution answers what takes place at a molecular/chemical level. The chemical equations are written out and a description of the reaction is provided. As well, this answer includes a reference for further reading.