Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

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1 Chapter 8 Prep Test Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. General Solubility Guidelines 1. Most sodium, potassium, and ammonium compounds are soluble in water. 2. Most nitrates, acetates, and chlorates are soluble. 3. Most chlorides are soluble, except those of silver, mercury(i), and lead. Lead(II) chloride is soluble in hot water. 4. Most sulfates are soluble, except those of barium, strontium, and lead. 5. Most carbonates, phosphates, and silicates are insoluble, except those of sodium, potassium, and ammonium. 6. Most sulfides are insoluble, except those of calcium, strontium, sodium, potassium, and ammonium. 1. Which of the following pairs of solutions produces a precipitate when combined? a. KOH and NH 4 Cl c. Na 2 SO 4 and KCl b. Fe(NO) 3 and KCl d. NH 4 Cl and AgNO 3 2. When solutions of NH 4 OH and K 2 SO 4 are combined, what precipitate(s) forms? a. (NH 4 SO 4 c. (NH 4 SO 4 and KOH b. KOH d. None of the above 3. What is the driving force in the following reaction? Ni(NO 3 (aq) K 2 S(aq) NiS s 2KNO 3 (aq) a. A gas is formed. c. Ionic compounds are reactants. b. A precipitate is formed. d. Ionic compounds are products. 4. Which compound dissociates to produce the ions Ca 2+ (aq) and NO 3 (aq)? a. CaNO 3 (s) c. Ca(NO 3 (s) b. Ca 2 NO 3 (s) d. Ca 2 (NO 3 ) 3 (s) 5. If a combination/synthesis reaction takes place between rubidium and bromine, the chemical formula for the product is. a. RuBr b. Rb 2 Br c. RbBr 2 d. RbBr 6. Which of the following is NOT a net ionic equation? a. Ag + (aq) + Cl (aq) AgCl(s) b. Fe 2+ (aq) + 2Cl (aq) + 2OH (aq) Fe(OH (s) + 2Cl (aq) c. 3Ca 2+ (aq) + 2P 3 (aq) Ca 3 P 2 (s) d. Cu 2+ (aq) + S 2 (aq) CuS(s) 7. Which compound dissociates to produce the ions SO 2 4 (aq) and NH 4+ (aq)? a. NH 4 SO 4 (s) c. NH 4 (SO 4 (s) b. (NH 4 SO 4 (s) d. (NH 4 ) 3 (SO 4 (s) 8. A double-replacement reaction takes place when aqueous Na 2 CO 3 reacts with aqueous Sn(NO 3. You would expect one of the products of this reaction to be. a. Na 2 CO 3 b. NaSn c. SnCO 3 d. CNO 3 1

2 9. The equation 2C 3 H 7 OH 9O 2 6CO 2 8H 2 O is an example of which type of reaction? a. combustion reaction c. double-replacement reaction 10. Which of the following would form when Al(NO 3 ) 3 (s) dissolves in water? a. Al + + (NO 3 ) 3 c. Al 3+ + NO 3 3 b. Al 3+ (aq) + 3NO 3 (aq) d. Al 3 (aq) + 3NO 3+ (aq) 11. When solutions of two ionic compounds are combined and a solid forms, the process is called a. hydration. c. solvation. b. precipitation. d. dissociation. 12. Which of the following is a balanced equation representing the decomposition of lead(iv) oxide? a. PbO 2 Pb 2O c. Pb 2 O 2Pb O b. PbO 2 Pb O 2 d. PbO Pb O Which of the following pairs of solutions produce a precipitate when combined? a. Cu(NO 3 and NaNO 3 c. Cu(NO 3 and K 2 CO 3 b. Fe(NO 3 ) 3 and MgCl 2 d. CaCl 2 and NaNO The reaction 2Fe 3Cl 2 2FeCl 3 is an example of which type of reaction? a. combustion reaction c. combination/synthesis reaction 15. What is the net ionic equation for the precipitation reaction between copper(ii) chloride and sodium hydroxide? a. Cu 2+ (aq) + 2OH (aq) Cu(OH (s) b. Na + (aq) + Cl (aq) NaCl(s) c. Cu 2+ (aq) + 2OH (aq) + 2Cl (aq) Cu(OH (s) + 2Cl (aq) d. Cu 2+ (aq) + 2Cl (aq) + 2Na + (aq) + 2OH (aq) Cu(OH (s) + 2NaCl(s) 16. Which of the following dissociates in water? a. NaCl b. MgCO 3 c. AgCl d. SrSO Which of the following would form when K 2 S(s) dissolves in water? a. 2K + (aq) + S 2 (aq) c. K 2+ (aq) + S 2 (aq) b. K 2+ 2 (aq) + S 2 (aq) d. 2K(aq) + S(aq) 18. What is the spectator ion in the equation 2Na + (aq) + S 2 (aq)+ Zn 2+ (aq) + 2NO 3 (aq) 2Na + (aq)+ 2NO 3- (aq) + ZnS(s)? a. ZnS(s) b. Na + (aq) c. S 2 (aq) d. none of these 19. Which of the following statements is true about single-replacement reactions? a. They are restricted to metals. b. They involve a single product. c. One reactant switches places with another. d. Any metal replaces any other metal. 20. In a double-replacement reaction, the. a. products are always carbon dioxide and water b. reactants are usually two ionic compounds c. reactants are two elements d. products are a new element and a new compound 21. A precipitation is an example of what type of reaction? a. composition c. single-replacement b. decomposition d. double-replacement 2

3 22. A double-replacement reaction takes place when aqueous cobalt(iii) chloride reacts with aqueous lithium hydroxide. One of the products of this reaction is. a. Co(OH) 3 b. Co(OH c. LiCo 3 d. LiCl In a combustion reaction, one of the reactants is always. a. hydrogen b. nitrogen c. oxygen d. a metal 24. The type of reaction that takes place when one element reacts with a compound to form a new compound and a different element is a. a. combination/synthesis reaction c. single-replacement reaction b. decomposition reaction d. double-replacement reaction 25. What are the correct formulas and coefficients for the products of the following acid/base (double replacement) reaction when the reaction is balanced? RbOH H 3 PO 4 a. Rb(PO 4 ) 3 H 2 O c. Rb 3 PO 4 3H 2 O b. RbPO 4 2H 2 O d. H 3 Rb PO 4 OH 26. The equation Mg(s) 2HCl(aq) MgCl 2 (aq) H 2 g is an example of which type of reaction? a. combination reaction c. decomposition reaction b. single-replacement reaction d. double-replacement reaction 27. The equation H 3 PO 4 (aq) 3KOH (aq) K 3 PO 3 (aq) 3H 2 O (l) is an example of which type of reaction? a. double-replacement reaction c. decomposition reaction b. combination reaction d. single-replacement reaction Set A Set B 28. Which set of reactions above are examples of double replacement? a. Set A c. Neither b. Set B d. Both Matching Match each equation with its correct type a. acid-base reaction/double replacement c. precipitation reaction/double replacement b. single replacement d. synthesis 29. Mg(s) 2HCl(aq) MgCl 2 (aq) H 2 (g) 3

4 30. Ba(NO 3 (aq) K 2 SO 4 (aq) BaSO 4 s 2KNO 3 (aq) 31. H 3 PO 4 (aq) 3KOH (aq) K 3 PO 3 (aq) 3H 2 O (l) 32. 2H 2(g) + O 2(g) 2H 2 O (g) Match each item with the correct statement below. a. combination/synthesis reaction c. combustion reaction 33. a reaction where one element switches places with the cation of the other reactant 34. a reaction in which a single compound is broken down into simpler substances 35. a reaction in which 2 or more substances react to form one substance. 36. a reaction in which oxygen reacts with another substance, often producing heat or light 4

5 ID: A Chapter 8 Prep Test Answer Section MULTIPLE CHOICE 1. ANS: D PTS: 1 2. ANS: D PTS: 1 3. ANS: B PTS: 1 4. ANS: C PTS: 1 5. ANS: D PTS: 1 6. ANS: B PTS: 1 7. ANS: B PTS: 1 8. ANS: C PTS: 1 9. ANS: A PTS: ANS: B PTS: ANS: B PTS: ANS: B PTS: ANS: C PTS: ANS: C PTS: ANS: A PTS: ANS: A PTS: ANS: A PTS: ANS: B PTS: ANS: C PTS: ANS: B PTS: ANS: D PTS: ANS: A PTS: ANS: C PTS: ANS: C PTS: ANS: C PTS: ANS: B PTS: ANS: A PTS: ANS: B PTS: 1 MATCHING 29. ANS: B PTS: ANS: C PTS: ANS: A PTS: ANS: D PTS: ANS: B PTS: ANS: D PTS: ANS: A PTS: ANS: C PTS: 1 1