+1
 Ammonium    NH4+                                                                   Activity series of metals

                 -1                                                                                    Li
Dihydrogen phosphate H2 PO 4-                                                     K                 H in acids or H2 O  
Acetate                        C 2H3O2-   				    Ba                                                                                                                               Bisulfite                       HSO3-				    Ca	
Bisulfate                      HSO4-			                  Na	
Bicarbonate                 HCO3-                                                                                          ___________________
Nitrate                         NO3-                                                           Mg
Nitrite                          NO2-                                                           Al
Cyanide                       CN -                                                            Zn                                             
Hydroxide                   OH-                                                             Fe            H in acids only
Iodate                          IO 3-                                                            Ni                                             
Perchlorate                  ClO4-                                                           Sn
Chlorate                      ClO3-                                                           Pb
Chlorite                      ClO2-                                                             H
Hypochlorite              ClO-                                                            Cu
Permanganate             MnO4-                                                           Hg
                                                                                                        Ag
                                                                                                        Au
               -2                                                                               
                                                                                           
Hydrogen phosphate       HPO42-
Oxalate                           C 2O42-
Sulfite                             SO 32-                                                       
Sulfate                            SO 42-                                         
Carbonate                       CO 32-                                         
Chromate                        CrO42-
Dichromate                     Cr2 O42-
Silicate                            SiO32-
Peroxide                          O 22-                  

               -3
Phosphate         PO43-
Phosphite          PO 33-