Question

difference between physical change and chemical change ​

Answer 1

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Physical changes

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Physical changes include change in its physical properties like shape , size , volume , area etc .

Chemical changes

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Chemical changes include Decomposition of subtance to make new subtance and combining to subtance in which bonds are formed or bonds are broken .

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Answer 2

Answer:

          Physical Changes                    |       Chemical Changes

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          i. In physical changes, only     |       i. In chemical changes, both

          the physical properties           |       physical and chemical properties      

          change.                                    |       change.        

          ii. No new substance is           |       ii. New substance is formed.        

          formed.                                     |

          iii. Most physical changes       |       iii. Most chemical changes are        

          are reversible.                          |       irreversible.        

          iv. Examples: Boiling or           |       iv. Examples: Rusting, Digestion etc.  

          Cooling Water, Melting or       |

          Freezing Ice etc.                      |