Chemistry, 07.03.2020 03:55 cschuessler3

Instant hot and cold packs are found in many
common stores and work when two substances
react. Depending on the substances that react,
the reaction either absorbs heat or gives off heat.
The enthalpy of a hot pack is
stant ce
because the reaction
teine
Shake and althe
DONE
3. Apply та ітај закона
4.
D
ose of ha

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Instant hot and cold packs are found in many
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