Question

mention three differences between physical and chemical changes ​

Answer 1

Answer:

The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.

Answer 2

Answer:

Chemical change:-

• Change in property
• Change in molecule arrangement.
• Not reversible

Physical change:-

• Change in shape
• Change in size
• Reversible

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