Melting of wax is a physical change whereas the burning of candle is a chemical change?
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because in melting of wax new subtance is not formed but in burning of candle new substance is formed.
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chemical change : burning of wick ( that dhaaga thing between candles)
physical change : melting of wax , melting of wax is a physical change because it can be again converted to candle by freezing it
whereas the burning of wick can not be converted again..
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