The equation Ga + 2I2 -> GaI3.

Detailed information about the Ga + 2I₂ -> GaI₃equation:
The chemical equation above describes the reaction process between gallium (Ga) and iodine (I₂) to form gallium triiodide (GaI₃).

Reaction conditions:
This reaction requires high temperatures to occur. Specifically, gallium must be heated to a high temperature before it comes into contact with iodine.

Reaction process:
When gallium is heated and comes into contact with iodine, it absorbs heat and reacts with iodine to form gallium triiodide.

Phenomenon that occurs:
During the reaction process, gallium disappears and gallium triiodide appears, a black substance.