Why does the reaction H_(2)O+Auarrow no reaction not proceed to a product? The reaction proceeds too slowly to create products. Gold has a higher activity than hydrogen and cannot replace it. Gold has a lower activity than hydrogen and cannot replace it. The reaction cannot occur because water is a reactant.

The reaction reaction does not proceed because gold (Au) has a lower activity than hydrogen. In the activity series of metals, gold is one of the least reactive metals, meaning it cannot displace hydrogen from water or acids. Therefore, gold cannot replace hydrogen in this reaction, and no reaction occurs.