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Why must coal be heated in the absence of air to change into coke?
Coal needs to be heated in the absence of air to turn into coke because oxygen in the air would react with the coal and burn it, preventing the transformation into coke. Heating the coal in the absence of air allows the volatile components to be driven off, leaving behind a more solid and pure carbon structure, which is coke.
Does fire need air or oxygen?
The fire is fueled by oxygen in the air. There is no significant amount of hydrogen gas found in the atmosphere.Does the question relate to a laboratory experiment involving hydrogen gas? Or is the question a general one? Oxygen is not a fuel, but it is required to support combustion, or rapid oxidation. Hydrogen is combustible and can be used as fuel. If you burn hydrogen, the fire is being fueled by the hydrogen, not the oxygen, but without O2, the hydrogen would not burn.
Will a pure hydrogen gas give a pop ping sound when a burning splinter is put in it?
yes it will.pure hydrogen will put off a burning splinter with a pop sound.this is because hydrogen is a non supporter of combustion.instead hydrogen itself will burn with blue flames.this is because hydrogen is a highly combustible gas
Is pure gold flammable?
No, pure gold is not flammable. Gold is a very stable element and does not react with oxygen in the air at normal temperatures, so it does not burn.
When coal is heated in the absence of air what is the gas called?
The gas produced when coal is heated in the absence of air is called coal gas. It is a mixture of various gases such as methane, hydrogen, carbon monoxide, and carbon dioxide.
What will happen when coal is burned in the absence of air?
It will not burn.
How is helium and hydrogen used on a large scale?
helium does not burn, hydrogen will burn in air
What is the chemical test for hydrogen?
Hydrogen burn in air releasing a typical sound.
Why pure NH3 does not burn in air but impure PH3 burn in air?
With traces of P2H4 present, PH3 is spontaneously flammable in air
Why must coal be heated in the absence of air to change into coke?
Coal needs to be heated in the absence of air to turn into coke because oxygen in the air would react with the coal and burn it, preventing the transformation into coke. Heating the coal in the absence of air allows the volatile components to be driven off, leaving behind a more solid and pure carbon structure, which is coke.
Does fire need air or oxygen?
The fire is fueled by oxygen in the air. There is no significant amount of hydrogen gas found in the atmosphere.Does the question relate to a laboratory experiment involving hydrogen gas? Or is the question a general one? Oxygen is not a fuel, but it is required to support combustion, or rapid oxidation. Hydrogen is combustible and can be used as fuel. If you burn hydrogen, the fire is being fueled by the hydrogen, not the oxygen, but without O2, the hydrogen would not burn.
Name the metal that can be burn in absence of air?
This is a badly worded question, I believe "burning" requires the oxygen in air. Substances such as Phosphorus react with air to burn, and may continue this reaction when submerged. But I do not believe this is what you mean
Will a pure hydrogen gas give a pop ping sound when a burning splinter is put in it?
yes it will.pure hydrogen will put off a burning splinter with a pop sound.this is because hydrogen is a non supporter of combustion.instead hydrogen itself will burn with blue flames.this is because hydrogen is a highly combustible gas
What happens to hydrogen chloride gas when it meets air?
It turns into pure water that can be drunk.
Does steel wool burn faster in air or pure oxygen?
Steel wool burns faster in pure oxygen compared to air. This is because pure oxygen provides a more efficient environment for combustion, allowing the steel wool to ignite and burn more rapidly. In air, the presence of other gases dilutes the oxygen, slowing down the burning process.
Is their a word for absence of air?
the absence of air is "vacuum"
Is pure gold flammable?
No, pure gold is not flammable. Gold is a very stable element and does not react with oxygen in the air at normal temperatures, so it does not burn.
