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Cold packs contain chemical that react to absorb heat. Which substances is used in cold packs? A. Calcium Chloride B. Sodium Carbonate C. Magnesium sulphate D. Ammonium nitrate
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Cold packs contain chemical that react to absorb heat. Which substances is used in cold packs?

A. Calcium Chloride
B. Sodium Carbonate
C. Magnesium sulphate
D. Ammonium nitrate

User Origaminal
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D. Ammonium Nitrate. Firstly, I know because its the substance that when dissolved in water is colder than the beginning liquid, and Secondly, I cheated and looked in my first aid kit on an ice pack
User Eleonora Ivanova
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