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Explanation: Physical changes do not change a sbstances identity, it can consist of changes in color, size, etc.
Chemical changes on the completley changes the chemical makeup of a substance. Chemical changes can consist of combustion, corrosion, etc.
In a nutshell, a chemical change produces a new substance, while a physical change does not. A material may change shapes or forms while undergoing a physical change, but no chemical reactions occur and no new compounds are produced.