What do you mean by chemical change in chemistry?
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Chemistry. a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance: The formation of rust on iron is a chemical change.
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A change in which a new substance is formed is called chemical change.
Examples:
- respiration in living beings.
- cooking of food.
- burning of paper or fuels.
- growth of plants.
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