Question

An object do not become different substance during a physical change. Give reason​

Answer 1

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Physical changes are changes in the physical properties of substances. No new substances are formed in these changes. These changes may be reversible. In chemical changes new substances are produced.

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Answer 2

Answer:

Physical Change only changes the appearance of the object. No chemical reaction takes place between the particles.That's why the properties of the substance do not change during a physical change. It's reversible. It's temporary. No new substance is formed in it.

For Example; Changing of ice to water and water to ice,the properties remain the same but burning of paper forms ashes that cannot be converted into paper back!