Question

write any three differences between a physical and a chemical change.

Answer 1

Dear student,

PHYSICAL CHANGE :
1.Here in such changes there is no change in the chemical identity but only state of matter changes
2 In such changes no new product is formed
3.All such physical changes are reversible changes
eg, freezing of water
CHEMICAL CHANGES :
1. Here substance gets converted into new substance with different composition
​​​​​​2. In such changes a new product is formed.
3. these changes are irreversible changes ie, the original matter cannot be recovered
eg rusting of iron
Regards
​​​​​​