Question

Burning of candle is a chemical change while melting of wax is a physical change. explain ​

Answer 1

Answer:

Melting of wax is temporary and wax can settle again on cooling and turns into a solid. Hence, the change is only physical and the state of matter changes. Burning of the candle is permanent because once it is burnt it cannot be converted into the candle.

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Answer 2

Answer:

Burning of candle gives out CO2 fire, light, heat which cannot be taken to its initial situation again. So it is a chemical change. But melted wax can be reshaped and used. So there is no change in the molecule of the wax . Its just a change of its state of matter. So melting of wax is a physical change.

Explanation:

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