Chemistry Ch.8 Study Guide Multiple Choice #25-47

25. Choose the name for the chemical formula CaCl2 a. calcium chloride b. calcium chlorite c. monocalcium dichloride d. calcium chlorate

A

28. Choose the name for the chemical formula HCl (aq). a. hydrochloric acid b. hydrogen chloride c. hydrogen monochloride d. hydrogen monoclorate

A

31. A compound that contains water molecules in its crystalline structure is called a(n)_____________________. a. hydrate b. anhydrate c. oxyanion d. binary acid

A

39. The reaction 4Fe + 3O2 → 2Fe2O3 is a ____________________ reaction. a. synthesis b. decomposition c. single replacement d. double replacement

A

44. Choose the type of reaction represented by the equation below. NH3 + CO2 + H2O → NH4HCO3. a. synthesis b. decomposition c. single replacement d. double replacement

A

27. The Stock system, a convention for naming ionic compounds that contain a metal with multiple oxidation states, uses _______________. a. arabic numerals b. roman numerals c. coefficient d. none of these

B

32. Choose the name for the compound Pb(NO3)2 a. lead (I) nitrate b. lead (II) nitrate c. lead (I) nitrite d. lead (II) nitrite

B

37. When balancing a chemical equation, it is usually best to begin with the _______________. a. simplest molecule b. most complicated molecule c. products d. reactants

B

40. The reaction 2AlCl3 → 2Al + 3Cl2 is a __________________ reaction. a. synthesis b. decomposition c. single replacement d. double replacement

B

34. Which of the following does not represent a function of a balanced equation? a. identifies all substances involved in the reaction b. shows the composition of the substances involved c. indicates the mass of products and reactants d. accounts for all atoms involved in the reaction

C

41. The reaction TiCl4 + 4NA → Ti + 4NACl is a ____________________ reaction. a. synthesis b. decomposition c. single replacement d. double replacement

C

47. Using the ionic equation 2Na+ (aq) + CO32- (aq) + 2H+ (aq) + 2NO3- (aq) → 2Na+ (aq) + H2O (I) + CO2 (g), which of the following is the correct net ionic equation? a. 2Na+ (aq) + CO32- (aq) + 2H+ (aq) + 2NO3- (aq) → 2Na+ (aq) + 2NO3- (aq) + H2O (I) + CO2 (g) b. 2Na+ (aq) + CO32- (aq) + 2H+ (aq) → 2Na+ (aq) + H2O (I) + CO2 (g) c. CO32- (aq) + 2H+ (aq) → H2O (I) + CO2 (g) d. 2Na+ (aq) + 2NO3- (aq) → 2Na+ (aq) + 2NO3- (aq)

C

26. Choose the name for the chemical formula N2S5 * 3H2O. a. trinitrogen sulfide hexahydrate b. dinitrogen pentasulfate pentahydrate c. trinitrogen pentasulfide dihydrate d. dinitrogen pentasulfide trihydrate

D

29. Choose the name for the chemical formula H3PO4. a. trihydrogen phosphorus acid b. hydrolic acid c. trihydrogen monochloride oxide d. phosphoric acid

D

38. The symbol → in an equation means _________________. a. escapes b. combines c. gets hotter d. yields

D

42. The reaction 2NaCl + H2SO4 → Na2So4 + 2HCl is a __________________ reaction. a. synthesis b. decomposition c. single replacement d. double replacement

D

43. Which of the following metals is the most reactive? a. Fe b. Mg c. Cu d. Na

D

45. Choose the type of reaction represented by the equation below. Mg(OH)2 + 2HNO3 → Mg(NO3)2 + 2H2O a. synthesis b. decomposition c. single replacement d. double replacement

D

46. Which of the following is a binary ionic compound? a. H2O (I) b. BaSO4 (s) c. Al (s) d. NaCl (aq)

D