Polyatomic ions Study tool for polyatomic ions for remembering the formulas of the ions toripinkc published on January 08, 2012 Stacked 1/16 Cyanide Type answer. Hint: 3 characters 2/16 Nitrate Type answer. Hint: 4 characters 3/16 Perchlorate Type answer. Hint: 5 characters 4/16 Chlorate Type answer. Hint: 5 characters 5/16 Hydrogen Carbonate Type answer. Hint: 5 characters 6/16 Hypochlorite Type answer. Hint: 4 characters 7/16 Oxalate Type answer. Hint: 6 characters 8/16 Bromate Type answer. Hint: 5 characters 9/16 Hydroxide Type answer. Hint: 3 characters 10/16 Acetate Type answer. Hint: 7 characters 11/16 Permanganate Type answer. Hint: 5 characters 12/16 Ammonium Type answer. Hint: 4 characters 13/16 Carbonate Type answer. Hint: 5 characters 14/16 Phosphate Type answer. Hint: 5 characters 15/16 Sulfate Type answer. Hint: 5 characters 16/16 Iodate Type answer. Hint: 4 characters