what is the energy change that takes place when the candle are burning?

Answer 1

The energy reaction that takes place is a chemical reaction known as a combustion reaction

reason being is the chemical reaction is releasing both CO2 and other elemests as well as heat.

dont know the exact chemical composition of a typical candle otherwise i'd show the chemical reaction and balance it for ya
but it would look something like this

composition of candel + O2 = CO2 and remaning elements

this could also be considered as an exothermic reaction, but because of the ending result of CO2 its considered a combustion reaction

Answer 2

This is best answered by "The Chemical History of A Candle," by Michael Faraday, which you can read online or download at the site below.

Answer 3

Think about it. I just answered another question by you that is just as simple as this one. You must be having fun asking questions of this nature and waiting to see who bites. I bit once. Not again. Burn a candle and figure it out, if you don't all ready know the answer.

Answer 4

Chemical energy (the bonds holding together the molecules of the wick) is converted to heat and light energy.