Distinguish between 'Physical change' and 'Chemical change'. Give an example for each.
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A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.
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Physical change - No change occur and no new substance is obtained.eg- burning of candel
Chemical change- Change occur and new substance is obtained. eg- C+O2-Co2
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