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What is a physical change? (1 point)

Responses

a change that is visible
a change that is visible

a change that does not change the chemical identity of a substance
a change that does not change the chemical identity of a substance

a change that does change the chemical identity of a substance
a change that does change the chemical identity of a substance

a change that is not visible

1 answer

A physical change is a change that does not change the chemical identity of a substance.