Question

when a candle burns ,it is a chemical change,which is _______ in nature.​

Answer 1

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The methane gas burns with oxygen in the air to form two new substances: carbon dioxide and water vapour. During this chemical reaction heat is also produced. When you try to light a piece of solid wax it melts, but does not burn. If solid wax doesn't burn, how does acandle burn?

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Answer 2

Answer:

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Chemical Changes in Burning Candle: When you light the candle, the wax present near the wick will melt. Wick absorbs the liquid wax. The liquid wax vaporizes due the heat produced by the flame. This wax vapor near to flame burns and gives new substances like Carbon Dioxide, Carbon soot, water vapours, heat and light...

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