write the chemical formula of 50 ionic compounds

Chemical formulae of ionic compounds:
Potassium chloride - KCl
Sodium chloride - NaCl
Magnesium chloride - MgCl₂
Calcium chloride - CaCl₂
Calcium floride - CaF₂
Potassium flouride - KF
Lithium flouride - LiF
Sodium iodide- NaI
Potassium iodide - KI
Zinc sulphide - ZnS
Magnesium sulphide - MgS
Potassium bromide - KBr
Sodium bromide - NaBr
Sodium oxide - N2O
Potassium oxide - K2O
Magnesioum oxide - MgO
Calcium oxide- CaO
Zinc oxide - ZnO
Silver chloride- AgCl
Silver bromide - AgBr
Ferric chloride - FeCl₃
Ferrous chloride - FeCl₂
Beryllium fluoride - BeF₂
 Sodium sulfide - Na₂S 
Copper oxide - CuO
Copper sulfide - Cu₂S
Lead chloride - PbCl₂