What are physical and chemical changes …
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Yogita Ingle 5 years, 8 months ago
In a physical change, the molecules are rearranged while their actual composition remains same
Some example of physical change are freezing of water, melting of wax, boiling of water, etc.
In a chemical change, the molecular composition of a substance completely changes and a new substance is formed.
A few examples of chemical change are digestion of food, burning of coal, rusting, etc.
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