Question
Write the differences between physical and chemical changes.

Answer

Differences between physical and chemical changes are as follows
Physical changeChemical change
No new substance is formedNew substance is formed.
It is a temporary changeIt is a permanent change.
Physical change is easily reversible.Chemical change is irreversible.
Very little energy (heat, etc.) is absorbed or given out in a physical change.A lot of energy (in the form of heat, light, sound etc.) is absorbed or given out in a chemical change.

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