What is the oxidation state of #"H"_2"S"_2"O"_2"#?
The oxidation state of the molecule is
Refer to the explanation below.
The overall oxidation state for a neutral compound always equals zero.
The oxidation numbers for each element are indicated below.
The oxidation number of hydrogen in this case is
The oxidation number of oxygen is
The oxidation number of sulfur can be determined from the oxidation numbers for hydrogen and oxygen. The combined oxidation numbers for hydrogen and oxygen are
Since the overall oxidation number of a neutral compound must be zero, the total oxidation number for sulfur in this compound must be
The oxidation numbers for each element can be written above each element in the compound.