Reference Table of Selected Ions and Acids for Naming Salts and Deriving Their Formulas (Arranged alphabetically by formula) + Ag silver ion HP34O phosphoric acid +3 Al aluminum ion HS2 hydrogen sulfide +2 Ba barium ion HS24O sulfuric acid Br- bromide ion I- iodide ion Ca+2 calcium ion K+ potassium ion Cl- chloride ion Li+ lithium ion CN- cyanide ion Mn+2 manganese (II) (manganous) ion Co+2 cobalt (II) Na+ sodium ion -2 + CO3 carbonate ion NH4 ammonium ion Cr+2 chromium (II) (chromous) Ni+2 nickel (II) ion - Cr+3 chromium (III) (chromous) ion nitrate ion NO3 - Cu+ copper (I) (cuprous) ion nitrite ion NO2 Cu+2 copper (II) (cupric) ion O-2 oxide ion - - C23H02 acetate ion OH hydroxide ion F- fluoride ion Pb+2 lead ion +2 -3 Fe iron (II) (ferrous) ion PO4 phosphate ion Fe+3 iron (III) (ferric) ion S-2 sulfide ion HBr hydrogen bromide Sn+2 tin (II) (stannous) ion HCl hydrogen chloride Sn+4 tin (IV) (stannic) ion -2 HCN hydrogen cyanide SO4 sulfate ion -2 HC23O carbonic acid SO3 sulfite ion +2 HC232HO acetic acid Zn zinc ion - HF Hydrogen fluoride HCO3 hydrogen carbonate ion +2 - Hg mercury (II) (mercuric) ion HP24O dihydrogen phosphate ion +2 -2 Hg2 mercury (I) (mercurous) ion HPO4 monohydrogen phosphate ion - HI hydrogen iodide HSO4 hydrogen sulfate ion - HNO3 nitric acid HSO3 hydrogen sulfite ion 1 NAMES AND FORMULAS FOR SOME COMMON ACIDS AND ANIONS (BASES) DERIVED FROM THEM HBr Hydrobromic acid Br- bromide ion (Hydrogen bromide) HCl Hydrochloric acid Cl- chloride ion (Hydrogen chloride) HCN Hydrocyanic acid CN - cyanide ion (Hydrogen cyanide) - HC23O Carbonic acid HCO3 hydrogen carbonate ion -2 carbonate ion CO3 - HC23HO2 Acetic acid C23HO2 acetate ion HF Hydrofluoric acid F - fluoride ion (Hydrogen fluoride) HI Hydroiodic acid I - iodide ion (Hydrogen iodide) - HNO3 Nitric acid NO3 nitrate ion - HNO2 Nitrous acid NO2 nitrite ion - HP34O Phosphoric acid HP24O dihydrogen phosphate ion -2 monohydrogen phosphate ion HPO4 -3 phosphate ion PO4 - HS2 Hydrosulfuric acid HS hydrogen sulfide ion (Hydrogen sulfide ) -2 S sulfide ion - HS24O Sulfuric acid HSO4 hydrogen sulfate ion -2 sulfate ion SO4 - HS23O Sulfurous acid HSO3 hydrogen sulfite ion -2 sulfite ion SO3 2.