$$2Li(s) + 2KOH(aq) → 2LiOH(aq) + H2(g) + 2K(s)$$
In this reaction, lithium metal reacts with potassium hydroxide solution to form lithium hydroxide, hydrogen gas, and potassium metal. Lithium is a more reactive metal than potassium, so it displaces potassium from its compound. The hydrogen gas is produced as a result of the reaction between lithium and water (which is present in the potassium hydroxide solution).
The reaction is exothermic, meaning that it releases heat. The heat released by the reaction can cause the solution to boil and splatter, so it is important to take precautions when carrying out this reaction.
