write the difference between physical change and chemical change??
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- Physical changes only change the appearance of a substance, not its chemical composition.
- Chemical changes cause a substance to change into an entirely substance with a new chemical formula.
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Explanation:
In a physical change, no new substance is formed. A chemical change is always accompanied by one or more new substance(s). Physical change is easily reversible i.e original substance can be recovered. Chemical changes are irreversible i.e. original substance cannot be recovered.
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