The chemistry of cold packs - John Pollard
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Here is a link to a video from the educator's personal YouTube channel that provides a slightly more in-depth description of why substances mix or don’t mix based on energetics and entropy.
Do you know the difference between exothermic and endothermic reactions? Here is a great YouTube video that describes experimentally how to make a cold and heat pack, what exothermic and endothermic reactions are, and the science behind each.
For a list of endothermic versus exothermic reactions click this link!
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