Propane burning is a chemical change. The propane reacts with oxygen. New compounds are the result of the process.
Let me add a little more information to this. Propane stored in the tank is in liquid form under pressure (actually an equilibrium of propane gas in the top of the tank, and liquid propane in the bottom). When you open the valve, the gas escapes into the hose and goes to the burners.
As the gas escapes, some of the liquid propane evaporates into gas form.
The change from liquid to gas is a physical change.
chemical
Physical properties of the match would include thing such as its state, colour, odour, density and solubility. Chemical changes in the match would be such things at its ability to burn and the chemical changes of when the match is lit and there becomes a flame. Hope this helps a bit :)
TH, also known as triethylaluminum, is a pyrophoric chemical compound that is used as a fuel in military systems such as solid rocket propellants and flame projectors. It ignites spontaneously upon contact with air and is highly reactive, making it useful in military applications where a rapid and intense source of heat is required.
Yes, because a new compound (a new type of molecule, with another chemical composition) is obtained.
The oxygen consumption in a firework is a chemical change, as it involves the rearrangement of atoms and the formation of new molecules. This process releases energy in the form of heat and light, resulting in the colorful display we see in a firework explosion.
chemical
Yes, white phosphorus igniting is a physical change because it involves a change in the physical state of the substance (from solid to gas) without altering its chemical composition.
i am asking the same quesion it is on my chemistry homework and i dont know the answer!!
Photophor is the trade name for the chemical "Calcium Phosphide".On contact with acids or water, Calcium Phosphide,ignites spontan.This chemical is used for incendiary bombs and fireworks.
Yes, lighting a matchstick is a physical action that involves striking the match head against a rough surface to produce friction and heat, which ignites the match.
Silane. It is similar to methane, CH4, and ignites on contact with air.
The process of a match igniting to form ash and a mixture of gases involves a chemical change. This is because there is a chemical reaction taking place when the match combusts, converting the matchstick's materials into new substances like ash and gases.
Physical properties of the match would include thing such as its state, colour, odour, density and solubility. Chemical changes in the match would be such things at its ability to burn and the chemical changes of when the match is lit and there becomes a flame. Hope this helps a bit :)
Antimony trisulfide and sulfur provide the fuel for the match, which is ignited by a combination of red phosphorus (on the matchbook) and potassium perchlorate (coating the match). When friction heats the red phosphorus, some becomes white phosphorus and reacts with the perchlorate. This is sufficient to ignite the trisulfide and sulfur.
TH, also known as triethylaluminum, is a pyrophoric chemical compound that is used as a fuel in military systems such as solid rocket propellants and flame projectors. It ignites spontaneously upon contact with air and is highly reactive, making it useful in military applications where a rapid and intense source of heat is required.
Yes, the match head igniting when struck is a chemical property. It involves the chemical reaction between the match head and the striking surface that produces heat, leading to ignition.
When a spark ignites the mixture of gas and fuel in a four-stroke engine, stored chemical energy is converted to thermal energy, which causes the gas and fuel mixture to burn and expand rapidly, generating mechanical energy that powers the engine.