by testing it but i think that soot and carbon dioxide and melted wax is made...
To prove that the burning of a candle is a physical and chemical change, you can observe the physical changes such as the melting of the wax and the formation of soot. Additionally, you can analyze the chemical changes by noting the production of carbon dioxide and water vapor during the combustion process. By observing both physical and chemical changes, you can demonstrate that burning a candle involves both types of transformations.
Yes, candle burning is a reversible change because it can be undone by extinguishing the flame. When the flame is removed, the wax solidifies again, demonstrating that the process of burning is reversible by cooling down the wax.
simply cover a burning candle with a glass to cut off the air, then the candle will burn out
A candle dye out in carbon dioxide.
Oxygen supports burning through the process of oxidation, in which oxygen molecules react with the atoms of the burning material, releasing energy in the form of heat and light. This can be proven by conducting controlled experiments in a controlled environment where oxygen is present, and observing how materials burn in its presence compared to in its absence.
Light the candle and put a glass jar over it. Watch the flame of the candle closely. When the flame goes out, this means that the flame must have oxygen to burn the candle. This is how candles use oxygen.
place 2-3 plants with dense leaves in a closed glass chamber with a lighted candle. the candle will light longer than wothout plants
If you put an enclosed container over a candle, after a few minutes or seconds, the flame will go out. This is because when the candle burns, it releases carbon. The air around the candle contains oxygen. The carbon and oxygen combine forming carbon dioxide. When there is no more oxygen to combine with, the flame goes out.
Unless you intend to register the candle holder as a sculpture or other work of art, a new and unique type of candle holder would probably be better served with a patent. However, patent applications are fairly elaborate, and you will need to prove that your candle holder is indeed completely different from any that came before it.
How do you prove he is gay? Stop being ignorant.
The phlogiston theory has been debunked by the discovery of oxygen. When materials burn, they combine with oxygen, not phlogiston as believed in the theory. The understanding of combustion and oxidation provided by oxygen led to the rejection of the phlogiston theory.
No. Not being able to prove something is NOT the same as it being true.