What elements are not balanced in the equation MgO + 2 LiCl = MgCl2 Li2O

The answer is all elements are balanced.

Answer: This is a balanced equation

An easy way to figure out if the equation is balanced or not is that each element in the R. H. S should be equal to the element in the L. H. S

R. H. S L. H. S

Mg = 1 Mg = 1

O = 1 O = 1

Li = 2 Li = 2

Cl = 2 Cl = 2

As both of them have equal number of elements they are balanced.