The enzyme urease catalyzes the reaction of urea,(nh2conh2), with water to produce carbon dioxide and ammonia. in water, without the enzyme, the reaction proceeds with a first-order rate constant of 4.15 ×10^−5 s^−1 at 100 degree c. in the presence of the enzyme in water, the reaction proceeds with a rate constant of 3.4 ×10^4 s^−1 at 21 degree c. if the rate of the catalyzed reaction were the same at 100 degree c as it is at 21 degree c, what would be the difference in the activation energy between the catalyzed and uncatalyzed reactions? you may assume the frquency factor is equivalent in the uncatalyzed and catalyzed processes.

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

1.aluminum chloride (alcl3), and sodium hydroxide (naoh) can react to form aluminum hydroxide (al(oh)3) and sodium chloride (nacl).    you have 13.4 g of aluminum chloride and 10.0 g of sodium hydroxide. answer the following questions: •what is the balanced equation for this reaction? •if you use all 13.4 g of aluminum chloride, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •if you use all 10.0 g of sodium hydroxide, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •how many grams of aluminum hydroxide will actually be made?     which reagent is limiting? explain your answer.

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18