Not reversable, If you put a burned candle in a cold dark place, it does not become whole again.
Milk undergoes a chemical change during processes like fermentation, where bacteria convert lactose into lactic acid, resulting in souring. Additionally, when milk is heated, proteins like casein denature and coagulate, forming curds and altering the milk's composition. These changes are not reversible, indicating a transformation at the molecular level, which is characteristic of chemical changes.
Grinding a bar of iron into a powder is a physical change, not a chemical change. This is because the iron is still the same substance, just in a different physical form. No new substances are formed during the grinding process, demonstrating that it is a physical change.
More Info: In a lab to prove that the temperature of matter can not change if it is going through a state change, data for the state change from solid to liquid has a small variation (the temp probe read melted water instead of the ice). How do I academically explain/ justify this in my lab write up?
how can you prove that earth is a sphere by looking at the pole st
To try to prove that whites were the strongest race apex
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.
by testing it but i think that soot and carbon dioxide and melted wax is made...
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.
a reversible machine is a machine which is in itself a perpetual motion machine I am guessing.
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
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.
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.
Milk undergoes a chemical change during processes like fermentation, where bacteria convert lactose into lactic acid, resulting in souring. Additionally, when milk is heated, proteins like casein denature and coagulate, forming curds and altering the milk's composition. These changes are not reversible, indicating a transformation at the molecular level, which is characteristic of chemical changes.
White is typically the pure color (By the way, this doesn't apply to people. That would be racist.) according to the church, probably since it is the base for all colors. Therefore, since Jesus was pure, the candle stands for him, although really, the candles could just stand for purity, and not Jesus.
no.