Directions: The balanced equation shows the reaction of sodium hydroxide with hydrochloric acid. A total of 8.72 mimiters (mL) 0.42 NaOH reacts with 21.8 of HCl of unknown concentration . Use this information and the equation to answer any questions that follow. NaOH(aq)+HCl(aq) NaCl(aq)+H 2 O(l) what is the concentration of hydrochloric acid?

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next