what is difference between physical process and chemical process????????
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The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition
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in physical change no new substance is form eg breaking of glass , freezing of water, tearing of paper,etc
in chemical change a new substance is form example cooking of food., digestion of food , burning of paper ,etc
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