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CBSE Class 9 Answered

Write any three differences between chemical change and physical change.
Asked by Topperlearning User | 08 May, 2014, 09:40: AM
answered-by-expert Expert Answer

 

Physical change

Chemical change

(i) No new product is formed.

(i) New products are formed.

(ii) It is a temporary change.

(ii) It is a permanent change.

(iii) The mass of substance does not alter in this change.

(iii) The mass of substance does alter in this change.

(iv) Examples : Melting of wax, cutting of wood.

(iv) Example : Rusting of iron, burning of a cracker.

                                                                                                                                          

 

 

 

 

 

 

Answered by | 08 May, 2014, 11:40: AM
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