* Gallium is a metal with the symbol Ga.
* Chlorate is a polyatomic ion with the formula ClO₃⁻.
Since gallium has a +3 charge (Ga³⁺) and chlorate has a -1 charge (ClO₃⁻), we need three chlorate ions to balance the charge:
Ga(ClO₃)₃
Therefore, the chemical formula for gallium chlorate is Ga(ClO₃)₃.