Dioxygen (O2) and ozone (O3)
Nitrogen and Oxygen.
oxygen and carbon
The air is primarily composed of nitrogen and oxygen. About 78% Nitrogen, Oxygen 21%.
Hydrogen and Oxygen in the ratio 2H to 1O. But they are not both 'in the air'. The atmosphere contains oxygen free from hydrogen; water contain oxygen combined with hydrogen. But there have to be two atoms of hydrogen to one of oxygen and once combined they are fixed; H2O remains the same whether ice, water of steam. If I remember rightly oxygen combines easily with other molecules, hence many things 'rust' which is oxydisation. BWDIK.
Two elements found in unpolluted air are nitrogen, which makes up about 78% of the atmosphere, and oxygen, which makes up about 21%. These two elements are crucial for supporting life on Earth.
The two natural elements found in water are hydrogen and oxygen.
It depends on what you mean by the pure form of Oxygen. Air is about 20% Oxygen. It comes as a molecule of two atoms of oxygen tied together. The chemical formula is O₂ but a single oxygen would be O. A single oxygen molecule does not exist in nature.
group one and two metals react with oxygen in the air as well as moisture to from metal oxides
:O:=:O:Standard form of oxygen. It's elemental and gaseous form. O2
When two oxygen molecules combine, they form a molecule of dioxygen (O2), which is the most stable and common form of oxygen found in Earth's atmosphere. This process is called molecular oxygen formation and involves the sharing of electrons between the two oxygen molecules to create a stable O2 molecule.
The elements are Silicon (Si) and Oxygen (O).
Gases in air are nitrogen about 79%, oxygen about 20% and other gases 1%