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Answer Posted / aman
the basic difference between physical and chemical change are:
physical
1.if these substances change their state they will return to
its normal state.for eg. if water changes into water vapour
or solid ice it well evaporate or condense and will change
into water.
2.their physical appearance and composition are changed.
3.it is temporary contrast to chemical.
4.no new substances are formed.
chemical
all the points when are contrasted (opposite of the points
above). for eg. a paper when burns change into ash so new
substance is formed this is example for new substance and
chemical change.
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