Help pl Nitrogen has two isotopes. Nitrogen-14 is 98.76% abundant and nitrogen-15 is 1.24%
abundant. What is the average atomic mass of nitrogen? Show work!
(These are not the actual abundance amounts, they were altered for practice. Use the simulation to try to match the
percentages is you need help)

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