v. Write any four differences between Physical and Chemical change.
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1. physical change is reversible while chemical changes irreversible.
2. there is no change in volume of substances in physical cal change while there may be change in chemical change.
3.the pre se batane can be obtained in physical change whereas in chemical change the nature of substances changes.
4.. melting of wax is a physical change by burning of paper is a chemical chnge.
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Answer:
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut.
Explanation:
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