Answer :
Final answer:
Chemical changes create new substances, while physical changes involve alterations in state without changing identity.
Explanation:
Chemical changes occur when one substance is transformed into another substance. This involves the formation of new substances with different properties, such as the reaction of hydrogen and oxygen to form water.
Physical changes involve small energy changes and are easily reversible. The form of matter may change, but its identity remains the same, like ice melting into water.
Examples of chemical changes include gasoline burning to produce light and heat, while physical changes include changes in state like ice melting without altering the identity of the substance.
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