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Polyatomics

QuestionAnswer
NH4 (+) ammonium
HG2 (2+) dimercury
CH3COO (-) acetate
BrO3 (-) bromate
ClO3 (-) chlorate
CN(-) cyanide
H2PO4 (-) dihydrogen phosphate
HCO3 (-) hydrogen carbonate (bicarbonate)
HSO4 (-) hydrogen sulfate
OH (-) hydroxide
ClO (-) hypochlorite
NO3 (-) nitrate
NO2(-) nitrite
ClO4 (-) perchlorate
MnO4 (-) permanganate
CO3 (2-) carbonate
CrO4 (2-) chromate
Cr2O7 (2-) dichromate
HPO4 (2-) hydrogen phosphate
C2O4 (2-) oxalate
O2 (2-) peroxide
SO4 (2-) sulfaate
SO3 (2-) sulfite
AsO4 (3-) arsenate
PO4 (3-) phosphate