Oxygen is an element - it contains no other constituent gases.
oxygen
Hydrogen and Nitrogen. Or oxygen and carbon dioxide, or carbon monoxide.
The gases that are exchanged are oxygen and carbon dioxide.
Hydrogen and Oxygen are gases at 20OC.
oxygen
Oxygen
oxygen
These gases are nitrogen, oxygen and argon.
Nitrogen and Oxygen are the primary gases. Nitrogen consists of around 76% and Oxygen 22%
The most abundant gases are nitrogen and oxygen in the Earth atmosphere.
hydrogen, nitrogen, oxygen, fluorine, and chlorine are all gases at STP
hydrogen and oxygen