Question

write down difference between physical change and chemical change

Answer 1

A physical Change is a reversible change which changes only the physical state of a substance.For example cutting of paper
A chemical Change is an irreversible change that changes the chemical state of the substance.For example Burning of paper
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Answer 2

physical changes are temporary change while chemical change is a permanent change.

physical change can be change into its original state while chemical change can not be converted into its original state

example of physical change: ice changes into water(can be converted into ice by cooling water). example of chemical change is burning of wood