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2015-12-28T20:49:54+05:30

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A change in which substance does not change is known as Physical change.It is otherwise known as reversable change.
A change in which a new substances are obtained is known as chemical change.It is irreversible.Eg: burning of paper
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2015-12-29T14:36:27+05:30

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In a physical change there's a change in the physical composition, whereas in chemical change there is change in the chemical composition as well as the physical sometimes.
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