F2(g) + Ga2O(aq) →

Plz help

6F2 ( g ) + 2Ga2O ( aq ) → 4GaF3 + O2

F is more reactive than O, so F displaces O from Ga2O and forms GaF3.

Ga has a valency of 3, it need 3 electrons to get complete electronic configuration.

F has a valency of 1,

3 F atoms constitutes 3 electrons.

So, GaF3.

And hence, the chemical equation is balanced on both sides.

6F2(g) + 2Ga2O(aq) → 4GaF3(S) + O2(g)

(Fluorine) (gallium oxide) (Gallium trifluoride)

More information About Gallium trifluoride :

Gallium(III) fluoride (GaF3) is a chemical compound. It is a white solid that melts under pressure above 1000 °C but sublimes around 950 °C.

Melting point: 800 °C (1,470 °F; 1,070 K)

Boiling point: 1,000 °C (1,830 °F; 1,270 K)

Density: 4.47 g/cm3

hope it helps :)