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user100 [1]
4 years ago
5

What is the main difference between a chemical and a physical change? Use examples to support your answer.

Chemistry
2 answers:
Nana76 [90]4 years ago
6 0
The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition. Although we call them physical "reactions," no reaction is actually occurring.
umka2103 [35]4 years ago
3 0

Answer:

Physical changes are usually about physical states of matter. Chemical changes happen on a molecular level when you have two or more molecules that interact. Chemical changes happen when atomic bonds are broken or created during chemical reactions.

Explanation:

Example of an chemical reaction: explosion

Example of an physical reaction: Ice melting

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