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Question
Define a physical change and a chemical change. Give two examples of each.
Define a physical change and a chemical change. Give two examples of each.
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Solution
Physical Change
A physical change does not result in the formation of new material. Melting, freezing, vaporization, condensation, and sublimation are examples of physical changes in state or phase.
- It's a reversible procedure.
- It makes temporary adjustments.
Examples of physical changes include - crushing a can,
- melting an ice cube,
- breaking a bottle
Chemical Change
A change in which one or more new substances are formed is called a chemical change. It is an irreversible process. It makes long-term alterations. This, in turn, causes the production of new substance(s).
Examples of Chemical Changes include
- Rusting of Iron
- Souring of Milk
- Ripening of Fruits
- Digestion of Food
- Bursting of Cracker
Physical Change
A physical change does not result in the formation of new material. Melting, freezing, vaporization, condensation, and sublimation are examples of physical changes in state or phase.
- It's a reversible procedure.
- It makes temporary adjustments.
Examples of physical changes include - crushing a can,
- melting an ice cube,
- breaking a bottle
Chemical Change
A change in which one or more new substances are formed is called a chemical change. It is an irreversible process. It makes long-term alterations. This, in turn, causes the production of new substance(s).
Examples of Chemical Changes include
- Rusting of Iron
- Souring of Milk
- Ripening of Fruits
- Digestion of Food
- Bursting of Cracker
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