Lexi is balancing equations. She is finding one equation to be very difficult to balance. Which explains how to balance the equation ZnSO sub 4 plus Li sub 2 CO sub 3 rightarrow ZnCO sub 3 plus Li sub 2 SO sub 4 ?

Count each type of atom on both sides. Each side has 1 zinc, 1 sulfur, 2 lithium, and 1 carbon atom; each side also has 7 oxygen atoms. Since all the atom counts match, the equation is already balanced, so no coefficients need to be added.

AI-written and checked against the verified answer.