Question

what is role of oxygen gas​

Answer 1

Answer:

Explanation:

Oxygen plays a critical role in respiration, the energy-producing chemistry that drives the metabolisms of most living things. We humans, along with many other creatures, need oxygen in the air we breathe to stay alive. ... Oxygen can also form a molecule of three atoms, which is known as ozone (O3).

Answer 2

Answer:

Explanation:

• Oxygen gas is used in the formation of the water that is composed of oxygen combines with hydrogen .
• It is used to kill bacteria causing gangrene  
• It is used to treat carbon monoxide poisoning as well .