tabulate four points of difference between a physic changes and chemical changes?
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physical change
first. it it is change in which no new substance is formed
second. it is reversible in maximum cases
third. in it there is no changes in molecules
4th. example cutting of Apple and water into ice
chemical changes
first. in this new substance is formed
second. it is irreversible in nature
third. in it there is change in molecule
4th. example burning
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