Final answer:
The balanced chemical equation for the reaction is: 3 GaF₃ + 2 Cs → 3 CSF + 2 Ga.
Step-by-step explanation:
The balanced chemical equation for the reaction is: 3 GaF₃ + 2 Cs → 3 CSF + 2 Ga (Option a).
To balance the equation, we need to ensure that the same number of each type of atom is present on both sides of the equation.
For this reaction, we have 3 gallium trifluoride (GaF₃) molecules reacting with 2 cesium (Cs) atoms to produce 3 cesium sulfide (CSF) molecules and 2 gallium (Ga) atoms.