Physics, 28.01.2020 01:31, crodriguez87

What happens when a substance undergoes a physical change?

a: some physical properties change, but the substance keeps its identity.
b: no physical properties change, and the substance keeps its identity.
c: some physical properties change, and the substance changes its identity.
d: no physical properties change, but the substance changes its identity.

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Do you know the correct answer?

What happens when a substance undergoes a physical change?

a: some physical properties...