Description Question 1 Identify the spectator ions in the reaction Ca(NO3)2 + 2NaCl(aq) ? CaC ...

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Description Question 1 Identify the spectator ions in the reaction Ca(NO3)2 + 2NaCl(aq) ? CaCl2(aq) + 2NaNO3(aq) Select one: a.Na+, NO3- b. Ca+2, NO3- c. Na+, Cl- d. Ca+2, Cl- e. Na+, Cl-, Ca+2, NO3- Question 2 What is the oxidation number of N in NH4+ Select one: a. 4 b. -3 c. -4 d. 1 e. +3 Question 3 What are the spectator ions in the reaction HF(aq) + NaOH(aq) ? NaF(aq) + H2O(l) Select one: a. H+, F- b. Na+, OH- c. Na+, F- d. Na+ alone e. H+, OH- Question 4 What is the oxidation number of S in S2O3-2? Select one: a. -3 b. 2 c. 3 d. 4 e. -2 Question 5 Identify the oxidizing agent in the reaction: Cl2 + 2Br- ? 2Cl- + Br2 Select one: a. Br- b. Cl2 c. Br2 d. Cl- Question 6 What is the molarity of the solution formed by dissolving 10.0g of Ca(NO3)2 in 250 mL aqueous solution?  Question 7 Consider the reaction H2SO4(aq) + 2NaOH(aq) ? 2H2O(l) +Na2SO4(aq). If 25 mL of H2SO4 was needed to react with 15 mL of 0.20 M NaOH, what is the molarity of the H2SO4(aq)?  Question 8 Which of the following is a weak electrolyte? Select one: a. HF(aq) b. NH4Cl(aq) c. CaCl2(aq) d. CH3OH(aq) e. HCl(aq) Question 9 Identify the reducing agent in the reaction Ca + 2H+?  Ca+2 + H2 Select one: a. H2 b. Ca c. Ca+2 d. H+ Question 10 Chromium is less active than Manganese but more active than Cobalt. Which of the following reactions will occur? Select one: a. Co + Cr+3 ? Co+2 + Cr b. Mn + Cr+3 ? Mn+2 + Cr c. Co+2 + Cr+3 ? Co+ Cr d. Co + Cr ? Co+2 + Cr+3 e. Mn + Cr ? Mn+2 + Cr+3 Question 11 Which of the following is a strong electrolyte? Select one: a. HCl(aq) b. NH4Cl(aq) c. CaCl2(aq) d. All of them are e. None of them are Question 12 Identify the spectator ions in the reaction: Ca(NO3)2(aq) + Na2CO3(aq)?CaCO3(s) + 2NaNO3(aq) Select one: a. Na+, NO3- b. Ca+2, CO3-2 c. Ca+2, NO3- d. All are e. Na+, CO3-2 Question 13 Which of the following is a nonelectrolyte Select one: a. CH3OH(aq) b. CaCl2(aq) c. NH4Cl(aq) d. HCl(aq) e. NH3(aq) Question 14 Consider the reaction Mg(OH)2(s) + 2HCl(aq) ? MgCl2(aq) +2H2O(l). What is the mass of Mg(OH)2(s) needed to react with 25 ml of 0.20 M HCl(aq)?  Question 15 What is the coefficient of H2O when the following reaction is balanced: Al(OH)3(s) + H2SO4(aq) ?Al2(SO4)3(s) +H2O(l) Question 16 Which of the following will dissociate completely in dilute aqueous solutions? Select one: a. CaCO3(s) b. CO2(g) c. NH4Cl(aq) d. H2O(l) e. HF(aq) Question 17 Complete & Balance the following Reaction: Fe(NO3)3(aq) + Na2S(aq) ? ? + ?  Question 18 In which of the following is the oxidation number of the Cl +1? Select one: a. HClO b. HCl c. HClO2 d. HClO3 e. Cl2 Bottom of Form ·Bottom of Form