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Hydrogen
H+
Sodium
Na+
Potassium
K+
Ammonium
NH4+
Silver (I)
Ag+
Calcium
Ca2+
Iron (II)
Fe2+
Copper (II)
Cu2+
Lead (II)
Pb2+
Iron (III)
Fe3+
Aluminum
Al3+
Hydroxide
OH-
Chloride
Cl-
Nitrate
NO3-
Acetate
H3COO-
Bicarbonate
HCO3-
Sulfide
S2-
Oxide
O2-
Sulfate
SO4 2-
Carbonate
CO