If we keep a jar on burning candle it extinguishes due to cut in supply in oxygen.
A lit candle needs to draw oxygen from the air in order to continue the burning.
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during burning oxygen is required if you put CO2 in place of oxygen then the burning will be stopped
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How can you prove that oxygen is needed for burning?
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Put cup over candle.
There is oxygen inside the cup, but in a limited amount.
Also, carbon is from the fuel and oxygen is the oxidiser, with the waste, carbon mon/dioxide as supporting evidence. Magnesium can burn too, magnesium oxide is its product and the Earth’s surface and atmosphere is not hot enough for gaseous carbon to exist naturally (supporting that oxygen is not from fuels and carbon is not the ambient oxidiser), suggesting that not only is oxygen crucial for a flame, but even more important than the fuel’s elements, for multiple elements can burn with oxygen and heat.
Well, there is such thing as a fluorine fire, but still, in most contexts, oxygen is needed.
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formula weight for butane is 12x4+10 = 58 g/mol
c=48/58 mol = 83% of butane is carbon, so .83(1.5g) = 1.245 grams c
now convert to atoms
1.245g c (6.022x10^23/12g) = atoms c
explanation:the main physical factors that make agriculture possible or impossible are: . some crops grow better in one climatic zone than in others. relief (altitude and the gradient of terrain) influences agricultural activity. plants nedd soil with certain characvteristics.