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ASHA 777 [7]
4 years ago
11

A scientist is performing an experiment on a powder. Which of the following is a sign that a chemical change has definitely occu

rred during his experiment?
The powder catches on fire.
The powder releases bubbles.
The powder heats up.
The powder breaks apart into smaller particles.
Chemistry
1 answer:
cricket20 [7]4 years ago
5 0
The best and most correct answer among the choices provided by the question is the first choice "the powder catches fire"

Chemical change<span> is any </span>change<span> that results in the formation of new </span>chemical <span>substances. At the molecular level, </span>chemical change<span> involves making or breaking of bonds between atoms. These </span>changes<span> are </span>chemical<span>: iron rusting (iron oxide forms) gasoline burning (water vapor and carbon dioxide form)
</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
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