The concentration of 20 mL of HCl is determined by titrating with NaOH. The titration reaches its endpoint after adding 10.1 mL of 0.859 M NaOH. What was the original concentration of the 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

How many grams are in one mole of lead?

+= + + balance the equation on coefficients, ex. 1,1,1