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29-01-2021
Chemistry

contestada

What is the BEST way to determine if a chemical change has occurred?

1. try and ignite the substance

2. examine the properties before and after the change

3. try and melt the substance

4. see if you can reverse the process

Respuesta :

Toni5678 Toni5678

29-01-2021

Answer:

2. examine the properties before and after the change

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