Which statement is true about molarity and percent by mass?aBoth are ratios of the amount of solute over the amount of solution. bThey are ratios of the dilution over the concentration. cThey are inversely related. dBoth measure dilution.

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