thr oxidation number of mercury is + 2
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.
The chemical formula for the mercurous ion is Hg2^2+.
In MgBr2, the magnesium ion (Mg) has an oxidation number of +2, while the bromide ion (Br) has an oxidation number of -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 .
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.
The chemical formula for the mercurous ion is Hg2^2+.
A single mercurous ion has two positive charges and contains two mercury atoms and therefore has the formula Hg2+2. This cation requires two chloride anions, each which has a single negative charge, for the electroneutrality required in a compound between them, resulting in the formula given.
In MgBr2, the magnesium ion (Mg) has an oxidation number of +2, while the bromide ion (Br) has an oxidation number of -1.
The oxidation number of carbonate ion (CO3) is -2. Each oxygen atom has an oxidation number of -2, and the sum of the oxidation numbers in the ion must equal the charge of the ion, which is -2.
The oxidation number of the nitrite ion (NO2-) is -1. The oxidation number of nitrogen in the nitrite ion is +3, and each oxygen atom has an oxidation number of -2.
The oxidation number of a monatomic ion equals its charge. For example, the oxidation number of a sodium ion (Na+) is +1, which matches its charge of +1.
The oxidation number of nitrogen in the ammonium ion NH4+ is -3, and the oxidation number of hydrogen is +1. In ammonium chloride NH4Cl, the net charge on NH4 is +1 because the chloride ion Cl- has an oxidation number of -1.
Hydronium ion is H3O+ ion and has no carbon in it.