Question

What is a physical change?​

Answer 1

Physical change is usually irreversibly.

No new substance is formed during a physical change

Physical change in a substance affects its physical properties

Answer 2

Answer:

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Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.