What is O2???? It is such a jard question answer to get 100 points......!!!!!
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Explanation:
O2 is the chemical formula of Oxygen gas . It is found in the percentage of 21 in the Earth's atmosphere. Its necessary to carry out processes within human body moreover it is important for combustion. Its atomic number is 8.
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The molecule O2 takes 2 atoms of Oxygen to make a molecule of oxygen. These types of elements are called diatomic elements, because the element exists in its pure form as a molecule composed of 2 atoms of the element.
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