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What is the approximate mole fraction of nitrogen and oxygen in the atmosphere combined?

The approximate mole fraction of nitrogen in the atmosphere is about 0.7808, and the approximate mole fraction of oxygen is about 0.2095. When combined, the mole fraction of nitrogen and oxygen in the atmosphere is approximately 0.9903.


What gas in our atmosphere promotes combustion?

Oxygen


What gas is 21 percent of the Earth's atmosphere?

Oxygen is the gas that makes up about 21 percent of the Earth's atmosphere.


What is the mole fraction of oxygen gas in air?

The mole fraction of oxygen gas in air is approximately 0.21. This means that out of every 1 mole of air, 0.21 moles are oxygen gas molecules.


What gas in atmosphere is needed by the body?

1.lpg gas that the atmosphere reveal on its own self


Which gas in the atmosphere is the second most abundant gas?

Oxygen is the second most abundant gas in Earth's atmosphere, making up about 21% of the air we breathe.


What is the Level of oxygen on Saturn?

There is oxygen in the atmosphere of Saturn, but it is only a tiny fraction of the deep atmosphere, which is mostly hydrogen. It is not in a usable form as is oxygen on Earth.


What is the second most abundant gas found in the atmosphere?

The second most abundant gas in the Earth's atmosphere is oxygen, which makes up about 21% of the gases in the atmosphere.


The second most plentiful gas in the atmosphere?

This gas is oxygen.


What is not considered a greenhouse gas in the Earth's atmosphere?

Oxygen is not considered a greenhouse gas in the Earth's atmosphere.


What is the gas in the atmosphere important to respiration?

oxygen


Which gas in the atmosphere is essential for breathing?

oxygen