CoCl3 is the chemical formula.
Common oxidation states of cobalt include +2 and +3, so possible chlorides are: CoCl2 and CoCl3 , but the last one is rare.
(CoF3 (Co(III)-fluoride) is a better possibillity to prove this oxidation state)
Maximum oxidation state is +5, though Cobalt can easily 'coordinate' with in total 6 coordinative groups (=CG) and negative ions: Co(CG)4Cl2 (a coordinative group migh be a < -N| >-atom group of ammonia, ethylenediamine or haemoglobin)
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The chemical formula for cobalt II chloride is CoCl2, which indicates that it contains one cobalt ion with a +2 charge and two chloride ions with a -1 charge each.
Cobalt (II) has an oxidation number of 2+.
Carbonate (CO3) has an oxidation number of 2-.
Therefore, cobalt (II) carbonate has a formula of CoCO3.
The formula of cobalt II hydrogen carbonate is:
Co(HCO3)3 cobaltic is Co3+ which makes it Co(HCO3)3 not 2
Co(HCO3)2
Because Co (II) has a 2+ charge and HCO3 has a - charge and must be balanced
if there's that dot in the between the chloride and the water molecule: cobalt (II) chloride hexahydrate.Cobalt(II) Chloride Hexahydrate
The chemical formula of cobalt II bromide is CoBr2.
The chemical formula for cobalt(II) hydrogen carbonate is Co(HCO3)2.
The chemical formula for cobalt II acetate is Co(C2H3O2)2.
The formula for cobalt(II) chloride hydrate is CoCl2·xH2O, where x represents the number of water molecules attached to each cobalt(II) chloride molecule.