How do you know there was a chemical reaction?

Question

asked Nov 22, 2021 132k views

2 Answers

Dilettant · Answer 1 · 2021-11-24T18:34:31+0000

Answer:

U will know there is a chemical reaction, when light, heat, color change, gas production, odor, or sound. The starting and ending materials of a physical change are the same

Step-by-step explanation:

Mooiamaduck · Answer 2 · 2021-11-28T21:30:23+0000

Answer:

depends

Step-by-step explanation:

because different chemicals can react they all have different ways of showing a reaction. an example is given: color, odor, texture weight solidity

How do you know there was a chemical reaction?

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