Problem: Which of the following diagrams represents a chemical change?

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Physical change → there is a change in a matter as it goes from one physical state to another.

Chemical change → atoms rearrange themselves to create a new substance. 



the same composition only farther apart  → went from one physical state to another
• atomic composition did not change and we did not create a new substance
Physical change

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Which of the following diagrams represents a chemical change?

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