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Physical and Chemical Changes

Physical and Chemical Changes > Ask Question to Alfie
cee
Hi
Whether burning of candle is a chemical change or physical change? Explain.
user
cee
When a candle burns, wax in the candle melts and is then vaporized as it is drawn up the wick. Melting and vaporization are physical changes. The wax vapours then burn at the wick to leave behind soot and water vapour, while emitting heat and light. The burning of wax vapours is a chemical change.
cee
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Give a few examples of naturally occuring chemical changes.
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