Physics, 31.07.2019 01:00 samiyahbass
Ascientist is performing and experiment on a powder . which is the following sign that a chemical change has definitely occurred during his experiment? a. the powder catches on fire b. the powder release bubbles c. the powder heats up d. the powder breaks apart into smaller particles
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Ascientist is performing and experiment on a powder . which is the following sign that a chemical ch...
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