Exam 2-2.3 - A 0.400 B 0.800 C 500 D 8.00 E 0.500 11...

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EXAM II Sample Exam 2-2 Dr. V. Williamson © Vickie M. Williamson 2007, All Rights Reserved 8. Which of the following pairs will result in a reaction when 0.1 M aqueous solutions of each are mixed? A. KOH and NaNO 3 B. K 2 SO 4 and CrCl 3 C. Li 2 CO 3 and MgI 2 D. NiSO 4 and CsNO 3 E. none of these pairs react 9. Which statement about the following reaction is INCORRECT ? Cr(s) + H 2 SO 4 (aq) CrSO 4 (aq) + H 2 (g) A. The oxidation number of Cr(s) is 0. B. The chromium is reduced. C. The oxidation number of the Cr ion in CrSO 4 is +2. D. H + in H 2 SO 4 is the oxidizing agent. E. The reducing agent releases a total of 2 electrons. 10. What is the new concentration in M of aqueous methanol if 0.200 L of a 2.00 M solution of methanol is diluted to 800. mL?
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Unformatted text preview: A. 0.400 B. 0.800 C. 500 D. 8.00 E. 0.500 11. Determine the limiting reactant when 10 moles of S are combined with 12 moles of O 2 according to the equation shown. 2S(s) + 3O 2 (g) → 2S0 3 (g) A. S B. both S and O 2 C. O 2 D. SO 3 E. there will be no limiting reactant 12. Which of the following is FALSE? A. HNO 2 would be a strong electrolyte. B. Nonelectrolytes dissolve into atoms or molecules. C. NH 4 NO 3 would be a strong electrolyte. D. Electrolytes conduct electricity when dissolved or melted. E. Electrolytes provide ions to a solution. 13. When the following is balanced the coefficient on the NH 3 is: NH 3 + O 2 → H 2 O + NO A. 2 B. 3 C. 1 D. 5 E. 4...
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