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HELPP

Select the correct answer.Which method of testing substances is a sure way to identify a chemical reaction? *

A. change in color
B. Change in density

Respuesta :

divorcedspiderman

actually it should be a formation of bubbles that identifies a chemical reaction.

Answer:

it's B

Explanation:

We can conclude that method of testing substances is a sure way to identify a chemical reaction formation of bubbles.

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