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Permanent Change

differentiate...

Question

differentiate between burning of candle and melting of wax in a pan

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Solution

Burning of candle is irreversible change.

Melting of wax is reversible .
Melting of wax is physical change and burning of candle is a chemical change.In burning the constituent of wax is used up to produce CO₂_,H₂O and heat.

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