Unfortunately, the chemical equation you provided is incorrect. It seems you may have mixed up the substances. Therefore, we cannot provide detailed information, reaction conditions, reaction processes, and observed phenomena.

To have a correct chemical equation, you need to ensure that the chemical elements on both sides of the equation are the same and the number of atoms for each element must also be equivalent. For example, if there are 2 hydrogen atoms and 1 oxygen atom on the left side of the equation, then there must also be 2 hydrogen atoms and 1 oxygen atom on the right side of the equation.

I’m sorry, but the chemical equation you provided seems to be incorrect. Hg and Bi are two elements belonging to the group of semiconductors, they cannot produce O₂ in the reaction process. If you provide more specific information, I could provide a better explanation.