Balance the chemical reaction. Mass balancing theory states that we cannot create or delete elements within a chemical reaction. Thus we must have the same number of elements on the left as on the right the the reaction. The equation is not balanced yet.
xCaCl₂ + yNa₃PO₄ → zCa3(PO₄)₂ + wNaCl
Find the values of x,y,z and w so that the number of elements on the left of → are the same as the number of elements on the right.