theduolingobird98 theduolingobird98
  • 14-04-2021
  • Chemistry
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How does a hot/cold pack work?

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eliz0987654321
eliz0987654321 eliz0987654321
  • 14-04-2021
Hot/cold packs are used by athletes to minimize swelling of injuries such as muscle and joint sprains. ... The hot/cold pack is activated by breaking the seal on the pouch of water and shaking the pack vigorously. This action mixes the water with the chemical starting the exothermic or endothermic reaction.
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