What is the balanced equation for KOH plus Zn?
This answer balances a theoretical reaction that does not occur
in nature.
2KOH + Zn -> Zn(OH)2 + 2K
Zn actually dissolves in strong base to form a so called
"zincate" which was traditionally gven the formula of ZnO22- . It
is now recognised that these zincate ions are hydrated to various
degrees and one such ion is (Zn(OH)4)2- .
Zn + 2KOHaq -> K2ZnO2aq +H2