Formulas & Charges (Chemistry Exam
Review)Latest Updated 2026
NH₄⁺
Ammonium
C₂H₃O₂⁻
Acetate
CO₃²⁻
Carbonate
HCO₃⁻
Hydrogen Carbonate (bicarbonate)
CrO₄²⁻
Chromate
Cr₂O₇²⁻
Dichromate
CN⁻
Cyanide
OH⁻
Hydroxide
NO₃⁻
Nitrate
NO₂⁻
Nitrite
MnO₄⁻
Permanganate