Tom Skerritt. Biography: Tom Skerritt is probably the best-known actor whose name is never remembered. A rugged outdoors type, Skerritt briefly attended Wayne State University and UCLA before making his film bow in [[Feature~V115961~War Hunt~warhunt]] (1962). His...
The chemical formula for oxygen is O2 and for individual oxygen  atom its symbol is O.   Gases such as oxygen exist as diatomic molecules.
32.00 grams of oxygen x 1 mole of oxygen atoms = 2 moles of oxygen atoms 16.00 g of oxygen This information can be used to figure out the formula of the gas. 54 Exploring the Chemical World, PGCC, 2003 1 mole of carbon and 2 moles of oxygen combined to form a compound. For every one atom of carbon there are two atoms of oxygen. The formula could be CO 2. The subscripts in a formula tell us the relative number of moles of the elements in the compound. Please note that the actual molecular formula could be C 2 O 4 since the relative number of C to O in this compound is also 1:2.