Question

as) give Reason
a why burning of candle is considered as an
escample of physical and chemical chana​

Answer 1

As it produces wax and its weight is totally different from the candle, So it is a chemical change.. no new substance are formed. In a burning candle, there are both physical and chemical changes . The melting of the solid wax to form liquid wax and the evaporation of liquid wax to form wax vapour are physical changes.