I’m sorry, but the equation you provided does not obey the law of conservation of atoms in chemical reactions, meaning the number of each type of atom on both sides of the equation is not equal.

In addition, the form of matter you provided (Hg₃Cu₂, Hg₂Cu₂, Cu₂) is not common in chemistry, and it is unclear about their chemical properties.

Therefore, I cannot provide detailed information about this equation, reaction conditions, the process of the reaction, or what occurs. Could you provide a more accurate chemical equation?

I’m sorry, but the chemical equation you provided is not valid. The compound Hg₃Cu₂ does not exist and O₂ cannot naturally appear in this equation. Please provide a valid chemical equation so that detailed information can be provided.