Naming Compounds

Naming Ionic Compounds Ionic compounds contain a metal and a nonmetal Name the metal first, then the nonmetal as -ide Examples: NaClsodium chloride ZnI 2 zinc iodide Al 2 O 3 aluminum oxide

What are the names of the following compounds? Na 3 N sodium nitride KBr potassium bromide Al 2 O 3 aluminum oxide MgS magnesium sulfide

Transition Metals Most form more than one positive ions with these charges: or or 3 + Ag + Cd 2+ Cu +, Cu 2+ Fe 2+, Fe 3+ silver cadmium copper(I) ion iron(II) ion ion ion copper (II) ion iron(III) ion

Names of cations with more than one charge… Use a Roman number after the name of a metal that forms two or more ions Transition metals and the metals in groups 4A and 5A FeCl 3 (Fe 3+ ) iron (III) chloride CuCl (Cu + ) copper (I) chloride SnF 4 (Sn 4+ ) tin (IV) fluoride PbCl 2 (Pb 2+ )lead (II) chloride Fe 2 S 3 (Fe 3+ )iron (III) sulfide

Name the following compounds: CaO calcium oxide SnCl 4 tin(IV) chloride Co 2 O 3 cobalt (III) oxide

Complete the names of the following compounds with variable metal ions: FeBr 2 iron (II) bromide Cu 2 O copper (I) oxide SnCl 4 tin (IV) chloride Fe 2 O 3 iron (III) oxide CuS copper (II) sulfide

Polyatomic Ions A group of atoms with an overall charge. Refer to your handout… NH 4 + Ammonium OH - Hydroxide NO 3 - Nitrate NO 2 - Nitrite CO 3 2- Carbonate

Naming Ternary Compounds Contain at least 3 elements Name the nonmetals as a polyatomic ion Examples: NaNO 3 Sodium nitrate K 2 SO 4 Potassium sulfate

Identify the correct names: Na 2 CO 3 sodium carbonate MgSO 3 magnesium sulfite MgSO 4 magnesium sulfate Ca(HCO 3 ) 2 calcium bicarbonate CaCO 3 calcium carbonate Ca 3 (PO 4 ) 2 calcium phosphate

Naming Covalent Compounds Two nonmetals End the last element in -ide Add prefixes to show more than 1 atom Prefixes: mon-1 penta-5 di-2hexa-6 tri-3 tetra-4

CO carbon monoxide CO 2 carbon dioxide PCl 3 phosphorus trichloride CCl 4 carbon tetrachloride N2ON2O dinitrogen monoxide

Acids without the presence of oxygen, the name is written as: Hydro(anion)ic acid Hydrosulfuric acid – H 2 S Hydrobromic acid - HBr Hydrocyanic acid – HCN

If the acids do contain oxygen, the method of naming them changes. If the anion ends in “-ate”, the suffix that is added to the chemical name is “-ic”. Nitric acid HNO 3 Sulfuric acid H 2 SO 4 Phosphoric acid H 3 PO 4 If the anion ends in “-ite”, the suffix is “-ous” Nitrous acid HNO 2 Sulfurous acid H 2 SO 3