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.
18 g of water. The formula is H2O It is also 1 mole of water. Remember the Avogadro number 6.022 x 10 ^23, this is the number of molecules in one mole. Since in one molecule of water, there is only one oxygen atom, then there will be 6.022 X 10^23 atoms of oxygen present in 1 mole of water (18 grams).ater is H2O 1mol H2O contains 1 mol O atoms Molar mass H2O - 18g/mol You have 1.0 mol H2O This contains 1 mol O atoms 1mol atoms = 6.022*10^23 atoms (Avagadro's number) Answer: 18g H2O contains 6.022*10^23 O atoms. Positive: 61 %.