The oxidation state of each individual carbon atom in (C2O4)2- is 6.
+4 each carbon
-2 for oxygen
+3
6
The oxidation state of an individual sulfur atom in (SO3)2- is 4.
H2SO4 is a compound and as such does not have an oxidation number. The individual atoms in this compound have oxidation number +1 for each hydrogen atom, +6 for sulfur, and -2 for each oxygen atom.
Potassium's oxidation number is +1. Chromium's oxidation number is +6. Oxygen's oxidation number is -2.
Nitrogen has plus 4 oxidation state.Oxygen has minus two.
Nitrogens oxidation number is plus five. Oxygen's number is minus two.
The oxidation state of an individual sulfur atom in (SO3)2- is 4.
H2SO4 is a compound and as such does not have an oxidation number. The individual atoms in this compound have oxidation number +1 for each hydrogen atom, +6 for sulfur, and -2 for each oxygen atom.
Potassium's oxidation number is +1. Chromium's oxidation number is +6. Oxygen's oxidation number is -2.
Nitrogen has plus 4 oxidation state.Oxygen has minus two.
Nitrogens oxidation number is plus five. Oxygen's number is minus two.
+4
Oxidation value of N is minus two in H2N-NH2 and of H it is (as always) +1
Silver has plus one.Chlorine has minus one.
It is equal to the charge.It is minus one.
Minus one for hydroxyl ( -OH) groups, minus two for oxo ( =O) groups.
There are many for S. Those are 0,2,4,6. some times they are minus.
Minus one, in their most common compounds.