The molecular formula is CoO Cation is Co^2+^
Anion is O^2-^
or in other words
cobalt(II) oxide = CoO = Co2+ + O2-
CoCl2
Formula: Co(NO3)2
Co(HSO4)2
CoCl2 cobaltous chloride or cobalt(II) chloride
The formula for cobalt(II) fluoride is CoF2, where cobalt has a +2 oxidation state and fluorine has a -1 oxidation state.
OF2 is the formula for fluorine oxide.
Al2O3 is the chemical formula of aluminium oxide.
OF2 is the formula for fluorine oxide.
The formula for barium oxide is BaO.
The chemical formula for boron oxide is B2O3
Formula: Au2O3
The chemical formula for silver(I) oxide is Ag2O.The chemical formula for silver(II) oxide is AgO.