Which of the following correctly describes intermediates and/or transition states? Select one: a. Transition states have partially formed bonds whereas intermediates have fully formed bonds. b. Transition states occur at minima on reaction coordinate diagrams. c. Both transition states and intermediates occur at maxima on reaction coordinate diagrams. d. none of the above e. An intermediate is always produced after the rate-determining

Which of the following correctly describes intermediates and/or transition states? Select one: a. Transition states have partially formed bonds whereas intermediates have fully formed bonds. b. Transition states occur at minima on reaction coordinate diagrams. c. Both transition states and intermediates occur at maxima on reaction coordinate diagrams. d. none of the above e. An intermediate is always produced after the rate-determining

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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As the temperature of a reaction is increased, the rate of the reaction increases because the: a) reactant molecules collide less frequently. b) reactant molecules collide with greater energy. c) reactant molecules collide less frequently and with greater energy. d) activation energy is lowered. e) activation energy is increased because of more collisions.
Matching Questions D2 4. 5. 6. Use the following terms to identify the correct definition below. a. reactive intermediate b. enthalpy c. activation energy d. rate determining step e. catalyst f. kinetic energy A chemical that is produced in one step of a reaction, and then used up in a later step The energy required for a productive collision to produce a reaction The slowest elementary step in a reaction mechanism
Consider the following mechanism: NO → N + O O + O3 → 2 O2 O2 + N → NO2 What is the role of O2? A. product only B. intermediate only C. Both intermediate and product D. reactant E. catalyst
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What is true about the diagram? A.) The step from A->B is the slow step because activation energy is high. B.) Step B-->C is the rate limiting step. C.) The reaction is endothermic. D.) There is one transition state showing. Please refer to the attached photo for the diagram.
22. Complex compounds that have high activation energy are complex compounds that are... A. inertB. is not stableC. stableD. labile
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Which statement is NOT correct? A. Activation energy is the same in the forward and reverse direction. B. The activated complex will be the highest on the reaction energy diagram. C. If the forward reaction is endothermic, the reverse reaction will be exothermic. D. In an endothermic reaction, the activation energy is usually greater than the change in enthalpy. E. An activated complex has higher energy than any molecule contributing to it.