indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium after reactant or product is added. 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.

Mr. chiu made a dot plot after asking his students a question. based on the dot plot, which statements are correct? check all that apply. eleven students answered mr. chiu's question. twelve students answered mr. chiu's question. three people studied for two hours. three people studied for three hours. everyone who responded studied for at least one hour. four people studied for four or more hours