Which conversion factor should be used to solve the following problem? How many moles of water (H2O) would be produced from the reaction of 3.25 moles of hydrochloric acid (HCl) reacting with excess calcium hydroxide Ca(OH)2? Ca(OH)2 +2HCl --> CaCl2 + 2H2O 3.25 mol HCL x ? Question 2 options: 2 mol HCl / 2 mol H2O 2 mol H2O / 2 mol HCl 2 mol HCl / 1 mol CaCl2 1 mol CaCl2 / 2 mol HCl

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