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Chemistry
Atoms
IGCSE Chemistry
Edexcel
NH4+
Ammonium
SO42-
Sulfate
CO32-
Carbonate
NO3-
Nitrate
OH-
Hydroxide
Ag+
Silver
Fe2+
Iron (II)
Fe3+
Iron (III)
Cu2+
Copper
Pb2+
Lead
Zn2+
Zinc