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.
The candle would burn off all the oxygen inside the jar, then the flame would go out as it needs oxygen to burn.
Anything that burns in the natural atmosphere, which is only about one fifth oxygen, would burn much faster in pure oxygen.
No, the flame needs the oxygen to burn. Without oxygen, the flame would go out.
the candle would eventually burn out because it needs oxygen to keep the flame going and when the jar is on top, no oxygen is getting to the fire
A fire needs oxygen to burn.
It would not burn on the moon first because it has no oxygen second thoughts some fire can burn on it to!
it would burn out in few seconds. if you take away the air, you also take away the oxygen in it (the air). and fire need oxygen to burn. simple explanation (sorry for bad spelling, I'm danish)
If Earth had twice as much oxygen as it does, fires would start easier and burn hotter. Arthropods (insects, spiders and the like) could be a good deal larger than they are now.
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
Oxygen levels will gradually decrease and more species of animals will disappear.