difference between physical and chemical change
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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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physical- which is riversibal eg- ice into water
chemical - it is not riversibal eg-burning of wood
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