CBSE Class 7 Answered
what is physical and chemical changes
Asked by friends4everp | 11 Jun, 2020, 14:55: PM
Physical changes are those changes in which only state of substance changes but chemical properties remains same. Physical changes are reversible in nature and no new substance is formed.
example- Melting of Ice.
Chemical changes are those changes in which chemical characteristic is changed. It is irreversible and new substance is formed.
Example-Rusting of Iron
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Answered by Ravi | 11 Jun, 2020, 22:00: PM
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