Define physical change-cheimal change
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Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.
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Physical change is a change in which the substance undergoes a change in physical state of the body without undergoing any change in the chemical composition of the body and porduces no new substances in the process.
Chemical change is a change in which the substance may or may not undergo a change in physical state of the body but undergoes changes in the chemical composition of the body to produce new substances in the process.
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