One type of Ionic Compounds – Acids and Bases Acids All acids are formed by an ionic bond between hydrogen ion (metal) with an anion (nonmetal) or a polyatomic ion (nonmetal). Acids Case 1: Hydrogen ion + anion HF (aq) (hydrofluoric acid): a bond between H and F (metal + nonmetal) HCl (aq) (hydrochloric acid): a bond between H and Cl (Metal + nonmetal) Oxy Acids Case 2: Hydrogen ion + polyatomic ion HNO3: a bond between Hydrogen ion and NO3- ion H2SO4: a bond between Hydrogen ion and SO42- ion. Naming Oxy Acids Name of an anion + -ic acid HNO3 Nitrate Ion nitric acid H2SO4 Sulfate Ion Sulfuric acid For acids, when a single anion is forming a bond with hydrogen ion, name as “hydro _____ ic Acid” HF (aq) = hydroflouric acid HCl (aq) = Hydrochloric acid HBr (aq) = hydrobromic acid H2S (aq) = hydrosulfuric acid Bases Ionic Bonds! Metal ion + OH- (Nonmetal) NaOH (aq) Ca(OH)2 (aq) Mg(OH)2 (aq) Naming - Base Name of Metal + “Hydroxide” NaOH (aq) Sodium hydroxide Ca(OH)2 (aq) Calcium hydroxide Mg(OH)2 (aq) Magnesium hydroxide