Because each O has 6 valence electrons and they each want 2 more. So, they get together and they share the 2 electrons making it O2, i.e. two oxygen atoms bonded together by sharing 2 electrons.
O is an atom, but O2 is a molecule.
A molecule because there are 2 oxygen atoms bonded.
The chemical formula for oxygen is O2, which means it is made up of two oxygen atoms bonded together.
S8 solid sulfur (i.e 8 sulfur atoms covalently bound together), and O2 is a molecule of oxygen gas ( two oxygen atoms bounds together)
The scientific formula for oxygen gas is O2, indicating that it consists of two oxygen atoms bonded together.
o2 is a symbol. A formula is something like O2 + H2 -> H20
The chemical formula for oxygen is O2, indicating that molecular oxygen consists of two oxygen atoms bonded together.
Oxygen chemical formula is O2. So, it is two oxygen atoms bonded together.
The molecular formula of 'normal' oxygen is O2, indicating that it consists of two oxygen atoms chemically bonded together.
O2 denotes oxygen. It is element. It is not an acid.
The molecular formula for oxygen is O2, indicating that it consists of two oxygen atoms bonded together.
oxygen gas is found as O2,two atoms of oxygen bonded together