Water, or H2O is a free-standing neutral compound, so it's oxidation number is 0. Its atoms have oxidation number though. Hydrogen's oxidation number in water is +1, and oxygen's is -2.
+1
h2o---> 2h + -2 = 0; 2h = +2; h = +1
H - +1 (oxidation number)
O - -2 (oxidation number)
2*(+1)+(-2)=0
H2O is neutral (if that's what you want)
-2
The oxide ion always has an oxidation number of -2 except for in peroxides when it is -1.
the oxidation number for H2O is 1.
the answer is -2.Related Information:The oxidation number of oxygen when it appears as an element is 0. The oxidation number in all compounds but peroxides is -2. The oxidation number of oxygen in peroxides is -1.
Atomic oxygen has oxidation number 0. Molecular oxygen also has 0 as oxidation number. It would be the same for five oxygen molecules as well.
the most common oxidation number for oxygen is -2.
It is a neutral oxide. Oxygen shows -2 oxidation number.
Oxidation number of Li is +1. Oxidation number of oxygen is -2.
The oxidation number of oxygen is -2 in most of its compounds
the answer is -2.Related Information:The oxidation number of oxygen when it appears as an element is 0. The oxidation number in all compounds but peroxides is -2. The oxidation number of oxygen in peroxides is -1.
In the compound Co2O3 cobalt has an oxidation number of 3 while oxygen has an oxidation number is -2.
Atomic oxygen has oxidation number 0. Molecular oxygen also has 0 as oxidation number. It would be the same for five oxygen molecules as well.
Silicon's oxidation number is +4.Oxygen's oxidation number is -2
Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.
the most common oxidation number for oxygen is -2.
It is a neutral oxide. Oxygen shows -2 oxidation number.
Oxidation number of Li is +1. Oxidation number of oxygen is -2.
In FeO the oxidation number of iron is 2+ and the oxidation number of oxygen is 2-.
in NiO2 the oxidation number for Ni is 4+ and the oxidation number for oxygen is 2-.
NO2 is a acidic gas. Nitrogen shows +4 oxidation number.