What elements are not balanced in the equation mgo + 2 licl = mgcl2 li2o

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.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be