Naming and Writing Ionic Compounds – Part III 10/2/15

Reverse the Process CompoundCationAnionFormula Strontium Chloride Hydronium Fluoride Calcium Nitrate Magnesium Iodide Potassium Chlorate Aluminum Bromide Beryllium Sulfate Sodium Dichromate

Reverse the Process CompoundCationAnionFormula Strontium ChlorideSr +2 Cl - SrCl 2 Hydronium FluorideH3O+H3O+ F-F- H 3 OF Calcium NitrateCa +2 NO 3 - Ca(NO 3 ) 2 Magnesium IodideMg +2 I-I- MgI 2 Potassium ChlorateK+K+ ClO 3 - KClO 3 Aluminum BromideAl +3 Br - AlBr 3 Beryllium SulfateBe +2 SO 4 -2 BeSO 4 Sodium DichromateNa + Cr 2 O 7 -2 Na 2 Cr 2 O 7

Transition Metals – Part III Transition metals are called as such because they can change (transition) between charges There are no rules or tricks to know as to what charge an element will take based on position in a group or period Roman numerals are used to show the charge of a transition metal (only used in compound name) I = 1 II = 2 III = 3 IV = 4 V = 5 VI = 6 VII =7

Examples NameCationAnionFormula Copper (II) Chloride Iron (III) Nitrate Cobalt (II) Sulfide Manganese (IV) Oxalate Zinc Bromide Silver Chlorate Cadmium Oxide

Examples NameCationAnionFormula Copper (II) ChlorideCu +2 Cl - CuCl 2 Iron (III) NitrateFe +3 NO 3 - Fe(NO 3 ) 3 Cobalt (II) SulfideCo +2 S -2 CoS Manganese (IV) OxalateMn +4 C 2 O 4 -2 Mn(C 2 O 4 ) 2 Zinc BromideZn +2 Br - ZnBr 2 Silver ChlorateAg +1 ClO 3 - AgClO 3 Cadmium OxideCd +2 O -2 CdO Zinc (+2), Silver (+1), Cadmium (+2), and Aluminum (+3) all have set charges

Reverse The Process FormulaCationAnionName SnO SnO 2 PbS PbI 4 FeSO 4 CrPO 4 CrCO 3 NiSO 3

Reverse The Process FormulaCationAnionName SnOSn +2 O -2 Tin (II) Oxide SnO 2 Sn +4 O -2 Tin (IV) Oxide PbSPb +2 S -2 Lead (II) Sulfide PbI 4 Pb +4 I-I- Lead (IV) Iodide FeSO 4 Fe +2 SO 4 -2 Iron (II) Sulfate CrPO 4 Cr +3 PO 4 -3 Chromium (III) Phosphate Cr(CO 3 ) 2 Cr +2 CO 3 - Chromium (II) Carbonate