differentiate between physical change 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 Change _
In a physical change, no new substance is formed
2.Chemical Change_
A chemical change is always accompanied by one or more new substance(s).
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