physical change and chemical change
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the change after which the physical and chemical properties of substance are change and it cannot be rechange into its backward properties that is known as chemical change.It is permanent change.
the change after which only physical properties of substance is changed and it can change into it's backward properties that is known as physical change. It is temporary change.
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physical change : change which has no change in molecular substance and only change in shape ,colour,size etc .
example : rolling of chapati dough
chemical change : change in molecular substance ,is irreversable ( cant be reversed ) pls mark me brainliest
example : rusting of iron
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