Poly-atomic Ions

Permanganate
MnO4-1
Hydroxide
OH-1
Acetate
CH3COO-1 or C2H3O2-1
Cyanide
CN-1
Cyanate
OCN-1
Chromate
CrO4-2
Dichromate
Cr2O7-2
Nitrate
NO3-1
x

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