Question

Crushing chalk into powder is an irreversible
change. Is this example a physical or
chemical change? Why?​

Answer 1

Answer:

Answer. It's a physical change because as there is no change in it's chemical properties.

Answer 2

Answer:

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Crushing chalk into powder is an reversible change.

This is an example of physical change as the composition and the properties of the substance is not altered, and no new substance is formed. So, thus it is a physical change.

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