During the combustion of a candle, oxygen combines with the hydrogen and carbon, to produce the products of energy, carbon dioxide and water. The oxygen for the reaction comes from the atmosphere and the initial heat source comes from a match. The candle is a hydrocarbon so the hydrogen and carbon for the reaction comes from the wax and wick. The heat energy from the reaction is released when bonds between the carbon and oxygen and hydrogen and oxygen are formed. The reactants during the combustion of a candle are oxygen, carbon, and hydrogen and thermal energy. The products are thermal energy, carbon dioxide, and water.
Candles are made from paraffin or another similar wax. Waxes are just hydrocarbons (like like methane, propane, or octane) only with more carbon atoms in their chain. Waxes typically have chains in the 20-40 carbon range. Like all hydrocarbons, paraffin combusts to form CO2 and H2O. However, if you pay close attention to what the candle is doing, it is much more interesting than a simple combustion reaction. When you light a candle, the first thing that happens is that the wick burns---the braided cotton ignites and starts to burn, but once the heat from the wick is sufficient to start melting and then vaporizing the wax, it is the wax that starts to combust since it burns at a lower temperature than the wick. Capillary action continues to feed the wick with more melted wax that vaporizes and burns as it gets to where the flame is located. As the wax source gets farther and farther from the top of the wick, the capillary action is no longer able to beat gravity and so the wick eventually either carbonizes from lack of oxygen and breaks off or completely combusts. Sorry to make this so long, but I thought this was a better picture of it than "it makes fire", which was the response that I replaced.
when its burns out the wax will go and where will only be the wick lefted
and when the candle stoped and got a little bit left it will go dead hard
The hydrogen and the carbon dioxide mix. Candle uses oxygen and wax as fuel
the wax burns up and continuosly drips down the wax burns up and continuosly drips down
The candle melts; also burning, evaporation and thermal decomposition of some components of the candle.
it changes from a solid to a gas.
the colour changes.
the wax melts
physical, there is nothing going on but friction, which causes heat, which causes fire.All three are physical.
the burning of a wax candle is quite a slow change, i can take hours until a candle burns out. When you compare this to some chemical reactions that take a few seconds to go to completion then this is a relatively slow change
The changes are the: growth of the living thing.
smooth skin
The term for the changes that take place in cells as they develop is called differentiation. It causes cells that are not very specialized to become cells that are very specialized.
Chemical energy changes into thermal energy and light energy.
It matters how big the candle is then you do how fast the fire burns the candle.
When a candle burns the solid wax melts to liquid and then it gets oxidized. This change of solid in to liquid is a physical activities of changing the phase of a substance.
when a candle is lit, the solid wax first melts into liquid.The liquid wax gets drawn up the wick. the liquid wax evaporates when it gets hot enough. It combines with the oxygen in the air and burns to form carbon in form of black soot, carbon dioxide and water.
physical, there is nothing going on but friction, which causes heat, which causes fire.All three are physical.
Take them to a new place Try new positions in the bedroom Romance him Try some kinky stuff; chains, whips, candle burns, etc.
the burning of a wax candle is quite a slow change, i can take hours until a candle burns out. When you compare this to some chemical reactions that take a few seconds to go to completion then this is a relatively slow change
what are the changes that take place when the animal is growing
No!chemical changes do not take place when a mixture is made.The constituent substances of the mixture retain their own chemical composition.Thus only physical changes take place.
The best place is a candle light dinner or hotel taj................
You need the chicken to give to the farmer with the pest problem. He will then give you a candle that burns blue that you have to take to the mansion.
the physical change is -the shape of the candle changes,some of the wax becomes liquid to solid. chemical change-the wick is burned *Hi just wanted to say that this person above is wrong...I mean, the wick burning would be a chemical change because it is combustion. They are wrong because the wick doesn't actually burn.The wax is absorbed by the wick which cools it off. Eventually the wick becomes too long and the top of it dries out and falls off into the wax. Fact being, the wax vapor burns. You should do some more individual research for details because there is more. Thanks!