Oxygen is a chemical element with the symbol O and atomic number 8. Oxygen gas, is a molecule of formula O2 consisting of 2 oxygen atoms. It is a highly reactive non-metal and is essential for most forms of life on Earth. Oxygen makes up approximately 21% of the Earth's atmosphere and is also present in water, minerals, and other compounds.
In living organisms, oxygen plays a crucial role in the process of respiration, in which oxygen is used to generate energy by breaking down glucose molecules. Oxygen is also important for the function of the immune system and plays a role in wound healing and tissue repair.
Oxygen can also be used in a wide range of industrial and medical applications, such as welding, metal cutting, and oxygen therapy for patients with respiratory problems. Oxygen is often used as an oxidising agent in chemical reactions and is a key component of many industrial processes.
However, oxygen can also be dangerous in certain contexts, such as in high concentrations or in the presence of flammable materials. It is important to use oxygen safely and to follow appropriate safety guidelines and regulations.
Oxygen
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