It has the same density as air.
is gas
Oxygen gas is neither a physical nor a chemical property. It is a state. The property of being a gas is a PHYSICAL property, however.
Ability to react with oxygen in the air is a chemical property.
Oxygen gas is made up of one substance = oxygen. So oxygen gas is not a compound
This property is called diffusion.
Hydrogen, helium and oxygen are gases. Gravity is a physical property of any substance.
Since decomposition is a chemical reaction, it would be considered a chemical property.
one atom is very small and when it goes up then it make oxygen gas
Primarily from CO2.
If the gas will sustain a flame of a match, oxygen is present.
A gas that forms oxygen is ozone. It is the one present in the upper atmosphere.
If one chemically reacts oxygen gas and hydrogen gas, any liquid produced is water.