Question

When a candle is burnt what type of changes take place ? Give another example is a similar process ?

Answer 1

candle is burnt is a chemical change. another eg. is rusting of iron

Answer 2

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when a candle burn both physical as well as chemical take place

physical change:.

same wax near the burning wick melt on the cool part off the candle

wax ------------} wax

(liqued){------------(solid)

chemical change:.

the following substance in the following••

• water vapour carbon dioxide
• light energy