Before heating - The candle is solid — firm, shaped, and stable. The wax is hard, and the wick is dry and unburned.After heating - The wax melts and becomes a liquid near the flame. The wick burns, producing light and heat. As it continues to burn, the wax evaporates and some of it turns into gas, which helps keep the flame going.Therefore:Physical change - Solid wax → liquid wax → some vaporChemical change - Burning of the wick and vaporized wax