Cobalt II has a +2 charge and is written Co2+. Nitrite has a -1 charge and is written NO2-.
Therefore, you must have two nitrite anions for every Cobalt II.
It is written... Co(NO2)2
The formula for cobalt (III) carbonate is Co2(CO3)3.
The formula for arsenic III nitrite is As(NO2)3. It represents one arsenic atom bonded to three nitrite ions.
The chemical formula for cobalt(III) acetate is (CH3CO)3Co.
The formula unit for cobalt(III) nitride is CoN.
Co2(CO3)3The chemical formula of cobalt(III) carbonate [not cobalt(111)] is Co2(CO3)3.
The formula for cobalt (III) carbonate is Co2(CO3)3.
CoCl3
The formula for iron(III) nitrite is Fe(NO2)3.
The formula for arsenic III nitrite is As(NO2)3. It represents one arsenic atom bonded to three nitrite ions.
The formula for Cobalt III nitrate is Co(NO3)3
The chemical formula for cobalt(III) acetate is (CH3CO)3Co.
The formula unit for cobalt(III) nitride is CoN.
Co2(CO3)3The chemical formula of cobalt(III) carbonate [not cobalt(111)] is Co2(CO3)3.
The formula for cobalt III nitride is CoN.
The formula for cobalt(III) chromate is Co2(CrO4)3.
The chemical formula of lead(III) nitrite is Pb(NO2)3.
The chemical formula for cobalt(III) carbonate is Co2(CO3)3. The chemical formula for sodium is Na.