Nothing. Oxygen itself is not flammable. Fire is a reaction between a flammable substance and oxygen.
There would be no flame because fire needs oxygen to burn, and the Martian atmosphere consists mainly of Carbon Dioxide.
If there was only oxygen and no nitrogen present, the burning process would be more efficient and the flames would burn brighter and hotter. Nitrogen in the air can act as a diluent, which can dampen the combustion process.
If you mix fire with additional oxygen, it would likely cause the fire to burn more intensely or spread more rapidly due to increased fuel supply. The additional oxygen would support combustion and increase the rate of the chemical reaction, making the fire burn hotter and faster.
A fire needs oxygen to burn.
Potassium nitrate itself is a source of oxygen, and it is not flammable by itself. So in oxygen, even in a very high amount of it, nothing would happen. However, if any combustible substance is combined with potassium nitrate and ignited, it would burn.
A flame uses oxygen in order to burn. By placing a jar over it, it limits the oxygen causing the flame to burn out. That is one reason house fires are dangerous, because fire burn oxygen and we need oxygen to breathe
burn to death
A substance would only burn in a vacuum if it contained an oxidizer. There has to be an oxidizer for there to be fire. That doesn't mean that it requires oxygen, just a substance that facilitates the removal of electrons.
We will be burn just like sun burn
it would burn
It would not burn on the moon first because it has no oxygen second thoughts some fire can burn on it to!
you will burn and burn and it will hurt alot