How can the rate of this reaction be increased

If you increase the concentration of a reactant, there will be more of the chemical present. More reactant particles moving together allow more collisions to happen and so the reaction rate is increased. The higher the concentration of reactants, the faster the rate of a reaction will be.

answer; i do believe the correct answer is (river); /// good luck

6.4 cm (max) - 25 cm (min)