The formula for zinc oxide is ZnO
Group 16 oxygen commonly forms an O2− anion while zinc forms Zn2+ cation. Zinc oxide is an inorganic chemical compound used as ingredient in medicine preparation or over-the-counter drug. its molar mass is 81.379 g mol-1. The molecule is formed by the cation Zn+2 and the anion O-2.
ZnO is an amphoteric oxide that can be dissolved in acids or alkali through the reactions:
ZnO + 2 H+ → Zn+2 + H2O
ZnO + 2 OH– → Zn+2 + H2O