Question

What do you mean by physical and chemical changes

Answer 1

Heya mate
Here Is Your Answer

Physical change- A change in which only the physical properties of any substance gets changed and no new substance is formed is called a physical change.

eg- Melting of wax
- Formation of clouds.

Chemical change- A change in which one or more new substances with entirely different chemical composition and properties from the original substance are formed is called a chemical change.

eg- burning of paper
- burning of fuels.

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Answer 2

Physical Change:

• A change in which no new substance is formed is called physical change.

Examples:

• tearing of paper.
• cutting a cauliflower.
• freezing of water.
• glowing of bulb.

Chemical change:

• 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.