Question

giving one example of each kind show that a change in energy takes place when a physical or chemical change occurs

Answer 1

Answer:

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Explanation:

Physical Change - When solid dry ice vaporises, the carbon dioxide molecules absorbs energy. Meanwhile, when liquid water vaporises it releases energy.

Chemical change - When a paper is burnt it releases energy in the form of heat and light.

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Answer 2

Answer:

Explanation:

on being boiled water changes into water vapour. the water vapour condenswes into drops of hot water transferring heat to the cold water in bowl. so the water in the bowl becomes hot.