5. When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place.

Answers (1)
M mansi

When a candle burns, both physical and chemical changes take place.On heating ,candle wax gets melted is a physical change since it again turns into wax on cooling.

The wax gives carbon dioxide ,heat,light, water vapour and carbon soot on heating with states chemical change.

Another example is the lightening of the bulb using a dry cell.

 

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