Question

POSSIBLE

Which is the main difference between physical changes and chemical changes?
O A physical change forms one or more new substances but a chemical change does not.
A chemical change forms one or more new substances but a physical change does not.
Substances change state of matter only by undergoing physical changes, not chemical changes.
O None of the other answer choices
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Answer 1

A substance undergoes a chemical change. The result is a new substance with new properties. However, when a substance undergoes a physical change, it is often reversible. The substance has new physical properties, but its chemical properties do not change.