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Chemistry
IGCSE Chemistry
Edexcel
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Ag
Ag+
Cu
Cu2+
Iron (II)
Fe2+
Iron (III)
Fe3+
Pb
Pb2+
Zn
Zn2+
Hydrogen
H+
Hydroxide
OH-
ammonium
NH4+
Carbonate
CO32-
Nitrate
NO3-
Sulfate
SO42-