As the candle is burning, some of the wax melts and turns into a gas in the atmosphere.
the wick Burns but it produces heat that melts the wax
It vapourises and burns.
The wax on the candle can turn in a gas
The chemical energy stored in the candle wax.
There are multiple physical changes and chemical changes that occur when a candle burns. One physical change is that the candle melts back into liquid wax. One chemical change is flame burning on the wick.
the wick Burns but it produces heat that melts the wax
Oxygen.
It vapourises and burns.
The wax on the candle can turn in a gas
As a candle burns, the candle becomes smaller as the wax melts.
Some wax burns, and as it does so, chemical changes occurs. Wax converts to CO2, CO, and H2O. That is an exothermic reaction The rest of the wax melts with the increased temperature. That is the physical change.
There are many things that physically chance when a candle burns. The wick burns, and turns into ash, and wax of the candle melts and runs down the sides of the candle or container.
The chemical energy stored in the candle wax.
Maybe Maybe NOT
When you light a candle, it burns the wax. That is chemical energy. The thermal energy is produced as the lighted wick continue to burn the wax. It also gives out light as it burns.
There are multiple physical changes and chemical changes that occur when a candle burns. One physical change is that the candle melts back into liquid wax. One chemical change is flame burning on the wick.
because, when the wax is lit it burns off as a vapor, when the candle was extinguished the wax vapor was still in the air, and the wax acts as fuel for the flame of a candle, so the flame combusted and lit the vapor, leading back to the candle wick.