0, 1, 2 and 4 oxidation states
+1 for mercurous ion
It is equal to the charge. So Oxidation number is +1
+1 for Hg in the Hg22+ ion
Th mercurous ion is a diatomic catiion, Hg22+, consisting of two mercury atoms covalently bonded together.
Calomel is mercury(I) chloride (mercurous chloride). It is ionic and contains the Hg22+ ion and the Cl- ion.
This is the thiosulfate ion. Sulfur shows +6 oxidation number.
It is equal to the charge. So Oxidation number is +1
Mercury could be reacted with Nitric acid to form Mercurous nitrate. Since hydrogen is less reactive than mercury, therefore mercury would not replace hydrogen from nitric acid but the nitrate ion could oxidize mercury ion and form mercurous chloride .
+1 for Hg in the Hg22+ ion
Th mercurous ion is a diatomic catiion, Hg22+, consisting of two mercury atoms covalently bonded together.
Calomel is mercury(I) chloride (mercurous chloride). It is ionic and contains the Hg22+ ion and the Cl- ion.
This is the thiosulfate ion. Sulfur shows +6 oxidation number.
In the hydronium ion (H3O+), the oxidation number of carbon is +3.
The oxidation number of the ammonium ion is +I.
Whatever the charge on that ion is.
HgO. The single mercury cation has a +2 charge, and single oxide anion a -2 charge. Mercurous oxide would be Hg2O, ie, the mecurous ion is a dimer, therefore it has two mercury atoms, each with a +1 charge. Since the oxide ion has a -2 charge , mercurous oxide is Hg2O.
the charge on a mono-atomic ion is the same as the oxidation number, for a polyatomic ion the charge is the sum of the oxidation numbers of its constituent elements.
The charge. Cations and anions have an oxidation number equal to their charge, for example in Fe2+, Fe hasan oxidation number of +2 and in S2- S has an oxidation number of -2. Uncharged atoms have zero oxidation number.