Question

how we can say that burning of an candle is a chemical change but glowing of bulb is a physical change ​

Answer 1

Answer:

Burning is a chemical change

Glowing Bulb is physical change

Explanation:

during burning of candle new substances like carbon dioxide gas and water vapour are produced, hence it is a chemical change as well. Glowing of an electric bulb is a physical change since no new substance with different properties is formed.