State four difference between a physical change and chemical chan… - Vidyadip

Question

State four difference between a physical change and chemical change.

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Answer

Four difference between a physical change and chemical change are:-

Physical change	Chemical change
1. In a physical change no new substance is formed.	1. In a chemical change new substance is formed
2. Temporarily change which can be reversed	2. Permanent change and irreversible
3. Weight of original substance doesn't change	3. Weight of original substances may increase or decrease
4. Energy like heat light etc. may or may not be absorbed or released	4. Energy like heat, light etc. are given out or absorbed.

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