* Molybdenum IV: This tells us the molybdenum ion has a +4 charge (Mo⁴⁺).
* Chlorate: This refers to the chlorate ion, which has a -1 charge (ClO₃⁻).
To balance the charges, we need four chlorate ions to balance the +4 charge of the molybdenum ion. This gives us the formula Mo(ClO₃)₄.
