Chemistry, 06.04.2020 23:21 kyle696969

What happens when a substance undergoes a physical change?
Some physical properties change, but the substace keeps its identity.
No physical properties change, and the substance keeps its identity.
Some physical properties change, and the substance changes its identity.
No physical properties change, but the substance changes its identity.

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What happens when a substance undergoes a physical change?
Some physical properties change, but...