What is the oxidation number of #"H"_2"O"# ?

1 Answer
Aug 13, 2018

Answer:

Well, oxidation number is an atomic property, i.e. a property of the atoms within a molecule....

Explanation:

And since water is a neutral molecule, the SUM of the oxidation numbers of hydrogen, and oxygen WITHIN THE MOLECULE must be ZERO....

And thus within water...

#H_"oxidation number"=+I#...

#O_"oxidation number"=-II#...

And #2xxH_"oxidation number"+O_"oxidation number"=0#...as required...

Of course, as the ELEMENTS, NEITHER oxygen nor hydrogen are conceived to have been reduced or oxidized...and their oxidation numbers are ZERO....