Give the main differences between physical changes and chemical c… - Vidyadip

Question

Give the main differences between physical changes and chemical changes.

✓

Answer

	PHYSICAL CHANGE		CHEMICAL CHANGE
i	No, new substance is formed in a physical change.	i	New substance is formed in a chemical change.
ii	It is a temporart change.	ii	A chemical change is a permanent change.
iii	It is easily reversible.	iii	This process is usually irreversible.
iv	Very little heat or light energy is usually absorbed or given out in this process.	iv	A lot of heat or light energy is absorbed or given out in this process.
v	Mass of substance does not alter.	v	Mass of substance does alter in this process.

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