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what is the difference between chemical and physical change.

Dear Student,

Physical changesChemical changes
  • Composition of the substance does not change.
  • Composition of the substance changes.
  • Most changes are reversible.
  • Most changes are irreversible.
  • No new substances are formed, e.g, 

 Ice → Water → Steam.

  • New substances are formed, e.g,

 Burning of Paper → Ashes  

  • For example, melting of ice, dissolving salt in water.
  • For example, rusting of iron, decay of food.

Hope its clear now. 

Enjoy learning!!

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physical changes are those where no new substance are formed. chemical changes are those where some new substances are formed. get it?

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physical changesare the changes that can be reversed but chemical change are the permanent change.

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physical change is a change that can be bought back by simple means like by heating or cooling but chemical change cannot be bought back like if u burn a papper u wont get the papper form back

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