equilibrium exam

equilibrium exam - Chemistry 2 Exam 1 Chp 13, 14, 15 Name:...

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Chp 13, 14, 15 Name: _______________________________ SHOW ALL WORK AND CIRCLE FINAL ANSWERS 1. Which of the following factors affect the initial rate of a reaction? 1) The nature of the reactants. 2) The concentration of the reactants. 3) The size of solid reactant particles. a) 1 only b) 2 only c) 3 only d) 1 and 2 only e) 1, 2, and 3 2. For the reaction IO 3 + 5I + 6H + 3 I 2 + 3 H 2 O the rate of disappearance of I at a particular time and concentration is 5.0 x 10 3 M•s 1 . How is the rate of reaction of I related to the rate of reaction of H + What is the rate of disappearance of H + in M•s 1 ? 3. The rate law for the oxidation of the iodide ion by the chlorate ion in aqueous acidic solution, ClO 3 + 9 I + 6 H+ 3 I 3– + Cl + 3 H 2 O has been found to be Rate = k [ClO 3 ] [I ] [H + ] 2 a) the overall order for the reaction is ___________ b) What are the units of k when time is in seconds and the concentration is in moles per liter? 4. Which of the following statements is always true ? a) Exothermic reactions have lower activation energies than endothermic reactions. b) The rate for a reaction depends on the concentrations of all the reactants. c) The rate of a catalyzed reaction is dependent on the concentration of the catalyst. d) The specific rate constant is dependent on the concentrations of the reacting species. e)
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equilibrium exam - Chemistry 2 Exam 1 Chp 13, 14, 15 Name:...

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