10. Radioactive decay is aorder process a. Zero b. First c. Second d. Third e. A
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Question
10. Radioactive decay is aorder process a. Zero b. First c. Second d. Third e. All of the above 11. A reaction mechanism is a a. Series of reactions that describe how a reaction occurs. b. Series of elementary reactions that will not sum to the overall reaction. c. Series of overall reactions that best describes the overall reaction of interest. d. Series of elementary reactions that best describes the overall reaction. e. None of the above 12. An elementary reaction. a. Is a single-step reaction in which the orders of the reactants can be determined directly from the stoichiometry of the reaction. b. Is multi-step reaction that the rate law can be derived from directly. c. Is a single-step reaction. d. Is not part of a reaction mechanism. e. Is a reaction that describes an overall chemical reaction. 13. A chemical species that is produced in one elementary reaction and subsequently used in the next elementary reaction is known as... a. An activated complex b. A transition state c. An intermediate d. A product e. A reactant 14. Which of the following are not forms of radioactive decay discussed in class? a. a-particle b. B-particle C. d. fe particle e. e particle 15. Which of the following is not part of the collision theory of gases? a. A reaction will occur spontaneously upon collision b. Any orientation of molecules will result in a reaction c. Any molecular energy should lead to a reaction d. Any energy equal to or less than the activation energy will lead to reaction. e. All of the above. 16. A protein that catalyzes a chemical reaction is known as... a. A structural protein b. An electron transport (redox) protein c. An enzyme d. A catalyst e) All of the aboveExplanation / Answer
10) b first order
All radioactive decay follow 1 st order kinetics
11)d a series of elementary reaction which best describe the overall reaction
The different elementary reactions sum up to give the product in the end. It is like parts of a puzzle. They work together to form the final product in the end
12) a it is a single step reaction in which the order of the reactants can be determined directly from the stoichiometry of the reaction
13) C intermediate
An intermediate is a molecular species that is formed during an elementary reaction from the reactants and reacts further in the whole mechanism which ultimately leads to product formation. They have a short lifetime and hence they do not remain in the product mixture.
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