Physics, 25.09.2019 02:50, ingridx0

Two compounds are mixed and light is emitted, the color changes, and heat is liberated.
which activity has occurred?
a) chemical reaction
b) chemical mixture
c) chemical nucleus exchange
d) chemical compromise
fast if possible
!

Answers: 1

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Two compounds are mixed and light is emitted, the color changes, and heat is liberated.
which...