Question

If metal oxide + water = Metal hydroxide, Then why does k + h20 = koh + h2 + heat energy
Basically my doubt is how can it produce potassium hydroxide when in the reactants side potassium is not in its oxide form?

Answer 1

In this reaction firstly K is converted to its metal oxide then it reacts with water again to form KOH. I think now your doubt is cleared.

Answer 2

Hope this may help uh!!