Question

write difference between chemical and physical change it is urgent please send in 5 minutes

Answer 1

hey mate,
here is your answer....
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●physical change:
i) physical changes are generally reversible changes.
ii) change in shape, size or physical state of the substance occurs but the chemical composition remains the same.
iii) no new substances are formed.
iv) examples-- melting of ice, expansion of iron on heating.
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●chemical changes:
i) change in chemical composition occurs.
ii) new substances(s) is/ are formed.
iii)chemical changes are generally irreversible.
iv)examples--photosynthesis in plants, digestion in animals.
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Answer 2

PHYSICAL CHANGE

1.it is temporary

2.it can get into its original position

CHEMICAL CHANGE

1.it is permanent

2.it can't get into its original position