Question

Give a balanced equation to prepare potassium oxide.

Answer 1

Potassium burns in $O_2$ to make potassium oxide

$4K_{\left(s\right)}+O_{2\left(g\right)}\to 2K_2{O}_{\left(s\right)}$

Potassium oxide dissolves in $H_{2}O$

$K_2{O}_{\left(s\right)}+H_2{O}_{\left(I\right)}\to 2KO{H}_{\left(aq\right)}$

Alternatively you can add potassium directly to water

$2K_{\left(s\right)}+2H_2{O}_{\left(I\right)}\to 2KO{H}_{\left(aq\right)}+H_{2\left(g\right)}\leftarrow SingeDisplacement$

$KOH$ used to make soap, liquid fertilizer, paint remover, cosmetics.