the formation of the silver(i) ammine complex ion is a reversible reaction that is allowed to reach equilibrium. for each subsequent change to the system, indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium. an up arrow indicates an increase in concentration, a down arrow indicates a decrease in concentration, and leaving it blank means there is no change in the concentration. you are currently in a labeling module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. ag (aq) 2nh3(aq) ↽−−⇀ ag(nh3) 2(aq) increasing the concentration of ag decreasing the concentration of nh3 increasing the concentration of ag(nh3) 2 answer bank