The name of the compound Zn(OH)2 is zinc hydroxide. The symbol Zn represents zinc, the symbol H represents hydrogen, and the symbol O represents oxygen.
The identity of a compound can be determined by isolating each element in the formula and determining the charges. The combination of one hydrogen atom and one oxygen atom forms the compound hydroxide. The compound is a combination of a zinc ion with a charge of +2 and a hydroxide ion with a charge of -1. The "2" after the parenthesis in the formula indicates that the compound contains two hydroxide ions for every one zinc ion.