Question

Define physical and chemical change with examples​

Answer 1

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Physical Change - ⠀Physical Change can be defined as a change which occurs in physical properties of an object. These types of changes are reversible. Usually, in this change a new substance is formed. It includes changes in size and shape.

Chemical Change - ⠀Chemical change can be defined as a change in which two or more than two substances combines with each other to form a new substance often known as Chemical Synthesis. These types of changes are irreversible.

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Physical Change —

• Boiling.

• Freezing.

• Melting.

• Frost formation.

• Condensation.

Chemical Change —

• Rusting of iron.

• Burning of paper.

• Food digestion.

• Combustion.

• Cooking of food.

Answer 2

Answer:

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.