The equation 2Tl + 3H2O -> Tl2O3 + 3H2

The chemical equation above describes the reaction between thallium (Tl) and water (H₂O), which produces thallium(III) oxide (Tl₂O₃) and hydrogen (H₂).

Reaction conditions: For the reaction to occur, thallium needs to come into contact with water under high temperature.

Reaction process: When thallium contacts with water under high temperature, it reacts with water, forming thallium(III) oxide and hydrogen gas.

Occurrence: Thallium, when coming into contact with water, creates bubbles of hydrogen gas, while also producing solid thallium(III) oxide. During the reaction process, it should be noted that both thallium and its compounds are highly toxic, so they should be handled under safe conditions to avoid direct contact.