give two basic differences 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 substance in a physical change there is a difference in the appearance or simple display of the sample of matter without a change in composition
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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 substance in a physical change there is a difference in the appearance or simple display of the sample of matter without a change in composition
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