Liquid oxygen is a liquid. Oxygen becomes a liquid at temperatures between about 50.5 K and 90.2 K (really cold). However, in business, liquid oxygen (still technically a liquid) is classified as an industrial gas.
There is also a commercial product called liquid oxygen, AKA "stabilized" or "aerobic" oxygen, that is also a liquid, but it is not oxygen.
its a gas
Oxygen is colorless as a gas, but as a liquid it is pale blue.
Oxygen can be liquid or a gas. It is just a different state of matter.
If one chemically reacts oxygen gas and hydrogen gas, any liquid produced is water.
When warmed, liquid oxygen changes to a gas for delivery to the patient.
Because oxygen takes up much less space for the same amount of oxygen as a liquid rather than a gas.
A gas at standard pressure
gas
Can you breathe liquid? No, so oxygen must be a gas because that's what everyone breathes.
Yes it is. It changes from the state of Gas to liquid oxygen. changing from gas to liquid to solid are all physical changes(states of matter).
Liquid oxygen and liquid hydrogen are used as rocket fuel, oxygen gas is used by the astronauts to breath.
A gas at standard pressure