How do you know when a chemical reaction is happenig or happend explain

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asked Sep 1, 2021 45.5k views

2 Answers

Miaonster · Answer 1 · 2021-09-03T01:46:35+0000

ok so you will know when a chemical equation is happening or happened because there will be some sort of spark/fire or something like that.

Saeedn · Answer 2 · 2021-09-07T10:52:06+0000

Answer:

A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change.

How do you know when a chemical reaction is happenig or happend explain

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