K₂O +2Li Li₂O +2k how do you solve?

K₂O +2Li --> Li₂O +2K

Explanation:

On the left side, K has 2 atoms and O has one combines with Li having 2 atoms. When the process starts Li burns and got atoms from O.

Hence O has 2 ions and Li has 1 ion

so to complete the bond, Two Li will have 2 ions which can complete O by sharing his 2 icons. i.e. Li₂O

and Two atoms of K can exist like 2K

So the equation will be like

K₂O +2Li --> Li₂O +2K