Verified Test Bank Ch.3 Chemical Compounds Bauer

Introduction to Chemistry, 5e (Bauer)

Chapter 3 Chemical Compounds

1) The figure shows all but which of the following?

A) two elements and a compound

B) a chemical reaction

C) one mixture and one pure substance

D) three compounds

2) Which of the substances shown in the figure is an ionic compound?

A) K2S

B) Na2SO4

C) SO2

D) Both Na2SO4 and SO2

E) Both K2S and Na2SO4

3) Which of the substances shown in the figure is a molecular compound?

A) Na3N

B) KNO3

C) NO2

D) Both Na3N and KNO3

E) Both KNO3 and NO2

4) Which of the following combinations of elements in a compound would be molecular?

A) sodium and nitrogen

B) calcium and oxygen

C) nitrogen and oxygen

D) potassium and chlorine

E) sodium and sulfur

5) Which of the following combinations of elements in a compound would be ionic?

A) barium and fluorine

B) hydrogen and sulfur

C) sulfur and oxygen

D) hydrogen and fluorine

E) all of these

6) Which of the following combinations of elements in a compound would be ionic?

A) sodium and sulfur

B) nitrogen and sulfur

C) phosphorus and fluorine

D) hydrogen and oxygen

E) all of these

7) Which of the following is classified as an ionic compound?

A) NO2

B) CF4

C) CH3OH

D) CaCO3

E) all of these

8) Which of the following is classified as a molecular compound?

A) OH–

B) N2

C) SO2

D) Mg(NO3)2

E) all of these

9) Rank the boiling points of the following compounds from lowest to highest: CO2, LiF, H2O

A) CO2 < H2O < LiF

B) CO2 < LiF < H2O

C) LiF < CO2 < H2O

D) H2O < LiF < CO2

E) H2O < CO2 < LiF

10) Rank the boiling points of the following compounds from lowest to highest: C12H22O11 (sucrose), O2, NaF

A) C12H22O11 (sucrose) < O2 < NaF

B) O2 < NaF < C12H22O11 (sucrose)

C) O2 < C12H22O11 (sucrose) < NaF

D) NaF < O2 < C12H22O11 (sucrose)

E) NaF < C12H22O11 (sucrose) < O2

11) Rank the boiling points of the following compounds from lowest to highest: N2, MgO, C2H5OH (ethyl alcohol)

A) MgO < C2H5OH (ethyl alcohol) < N2

B) MgO < N2 < C2H5OH (ethyl alcohol)

C) N2 < MgO < C2H5OH (ethyl alcohol)

D) N2 < C2H5OH (ethyl alcohol) < MgO

E) C2H5OH (ethyl alcohol) < N2 < MgO

12) Which of the following statements regarding ionic and molecular compounds is correct?

A) Molecular compounds are expected to have very high melting and boiling points compared to ionic compounds.

B) Molecular compounds are strong electrolytes in aqueous solution.

C) An ionic compound can be a gas, liquid, or solid at room temperature.

D) Molecular compounds form crystalline solids that are hard and brittle.

E) Ionic compounds are expected to have very high melting and boiling points compared to ionic compounds.

13) Which of the following is the correct formula for the bromide ion?

A) Br2

B) Br2–

C) Br22–

D) Br–

E) BrO3–

14) Which of the following is the correct formula for the nitride ion?

A) N2

B) NO2–

C) NO3–

D) N23–

E) N3–

15) Which combination of formula and name is incorrect?

A) Na+ = sodium ion

B) Ca2+ = calcium ion

C) N2– = nitride ion

D) F– = fluoride ion

E) O2– = oxide ion

16) Which combination of formula and name is incorrect?

A) S2− = sulfide ion

B) Br− = bromide ion

C) Li+ = lithium ion

D) Sr+ = strontium ion

E) P3− = phosphide ion

17) Which combination of formula and name is incorrect?

A) K+ = potassium ion

B) I– = iodide ion

C) Mg+ = magnesium ion

D) S2– = sulfide ion

E) N3– = nitride ion

18) The name of the oxoanion of nitrogen with a 1− charge shown in the figure is

A) nitrooxate ion.

B) nitride ion.

C) nitrite ion.

D) nitrate ion.

E) nitrous ion.

19) The name of the oxoanion of nitrogen with a 1− charge shown in the figure is

A) nitrooxate ion.

B) nitride ion.

C) nitrite ion.

D) nitrate ion.

E) nitrous ion.

20) The name of the oxoanion of sulfur with a 2− charge shown in the figure is

A) sulfite ion.

B) sulfate ion.

C) sulfide ion.

D) sulfurous ion.

E) sulfoxate ion.

21) Which of the following combinations of formula and name is incorrect?

A) hydroxide ion = OH–

B) nitrate ion = NO3–

C) sulfide ion = SO32–

D) nitrite ion = NO2–

E) sulfate ion = SO42–

22) Which of the following combinations of formula and name is incorrect?

A) nitride ion = NO2–

B) cyanide ion = CN–

C) chlorite ion = ClO2–

D) perchlorate ion = ClO4–

E) chloride ion = Cl–

23) Which of the following combinations of formula and name is incorrect?

A) carbonate ion = CO32–

B) ammonium ion = NH3

C) bicarbonate ion = HCO3–

D) periodate ion = IO4–

E) hypochlorite ion = ClO–

24) The formula for the permanganate ion is:

A) MnO4–

B) MnO22–

C) MnO3–

D) MnO32–

E) MnO42–

25) The formula for the ammonium ion is:

A) NH3+

B) NH3

C) NH4+

D) NH4

E) NH4–

26) The formula for the bicarbonate ion is:

A) C2O32–

B) CO32–

C) HCO32–

D) HCO3–

E) C2O42–

27) The formula for the phosphate ion is:

A) PO32–

B) PO34–

C) PO33–

D) PO42–

E) PO43–

28) The formula for the acetate ion is:

A) CH3CO2–

B) CH2CO3–

C) CH3CO22–

D) CH3CO23–

E) CH2CO2–

29) The formula for the chlorite ion is:

A) ClO–

B) ClO2–

C) ClO3–

D) ClO4–

E) ClO22–

30) The formula for the chlorate ion is ClO3−. What is the formula for the perchlorate ion?

A) ClO4–

B) ClO2–

C) ClO–

D) ClO32–

E) PClO3–

31) The formula for the bromate ion is BrO3−. What is the formula for the bromite ion?

A) BrO4−

B) BrO2−

C) BrO−

D) BrO32−

E) Br−

32) The formula for the iodate ion is IO3–. What is the formula for the hypoiodite ion?

A) IO4–

B) IO2–

C) IO–

D) IO32–

E) I–

33) Based on common charges, which formula for an ionic compound is incorrect?

A) CaCl

B) NaF

C) SrO

D) MgS

E) K3P

34) Based on common charges, which formula for an ionic compound is incorrect?

A) Ba(NO3)2

B) Ca(OH)2

C) MgCl3

D) Al2O3

E) KBr

35) Based on common charges, which formula for an ionic compound is incorrect?

A) Li2S

B) CaO

C) Na3N

D) K2Cl

E) Mg(OH)2

36) Based on common charges, which formula for an ionic compound is incorrect?

A) NaClO3

B) Sr(NO3)2

C) AlCl3

D) KI

E) MgBr

37) Based on common charges, which formula for an ionic compound is incorrect?

A) LiCO3

B) NaBr

C) CaO

D) SrS

E) MgCl2

38) Which of the following formulas for a compound containing the Fe2+ ion is incorrect?

A) FeO

B) FeCl

C) FeS

D) FeSO4

E) Fe(NO3)2

39) Which of the following formulas for a compound containing the Cu2+ ion is incorrect?

A) Cu(NO3)2

B) CuS

C) CuN

D) CuSO4

E) CuSO3

40) Which of the following formulas for a compound containing the Fe3+ ion is incorrect?

A) FeS

B) Fe2S3

C) FeN

D) FePO4

E) FeBr3

41) Which of the following formulas for a compound containing the Cu2+ ion is incorrect?

A) CuO

B) CuP

C) CuCO3

D) CuSO4

E) CuCl2

42) Which of the following formulas for a compound containing the Cr3+ ion is incorrect?

A) Cr(OH)3

B) Cr2(SO4)3

C) CrN

D) CrNO3

43) Which of the following formulas for a compound containing the Cr2+ ion is incorrect?

A) CrClO4

B) CrSO4

C) CrO

D) CrS

E) CrCl2

44) What is the formula for a compound composed of Cr3+ ions and SO32- ions?

A) CrSO3

B) Cr2(SO3)3

C) Cr3(SO3)2

D) Cr(SO3)2

E) Cr(SO3)3

45) What is the formula for a compound composed of Ca2+ ions and PO43− ions?

A) CaPO4

B) Ca2(PO4)3

C) Ca3(PO4)2

D) Ca(PO4)2

E) Ca(PO4)3

46) The images in the figure represent aqueous solutions of ionic compounds. Which could correspond to BaCl2?

A) I only

B) II only

C) III only

D) I and III

E) II and III

47) The images in the figure represent aqueous solutions of ionic compounds. Which could correspond to Na2S?

A) I only

B) II only

C) III only

D) I and III

E) II and III

48) What is the correct formula for the compound formed between iron(III) ion and the oxide ion?

A) FeO

B) Fe2O3

C) Fe3O2

D) Fe3O4

E) FeO3

49) What is the correct formula for the compound formed between copper(II) ion and the phosphide ion?

A) CuPO4

B) Cu2PO4

C) Cu3(PO4)2

D) Cu3P2

E) CuP

50) What is the correct formula for the compound formed between the aluminum ion and the sulfide ion?

A) Al3S2

B) AlS

C) Al2S

D) AlS2

E) Al2S3

51) What is the correct formula for the compound formed between the aluminum ion and the hydroxide ion?

A) AlOH

B) Al(OH)2

C) Al(OH)3

D) Al3OH

E) AlH3

52) What is the correct formula for the compound formed between the calcium ion and the sulfate ion?

A) CaSO4

B) Ca2(SO4)2

C) Ca(SO4)2

D) CaS

E) CaSO3

53) What is the correct formula for the compound formed between the cobalt(III) ion and the sulfate ion?

A) CoSO4

B) Co2(SO4)3

C) Co3(SO4)2

D) Co2S3

E) CoS3

54) What is the correct formula for the compound chromium(III) sulfide?

A) CrS

B) Cr3S

C) CrS3

D) Cr3S2

E) Cr2S3

55) What is the correct formula for the compound lead(IV) oxide?

A) PbO2

B) PbO4

C) Pb2O

D) Pb4O

E) PbO

56) Which of the following formula/name pairs is incorrect?

A) FeO iron(II) oxide

B) K2SO4 potassium sulfide

C) MnO2 manganese(IV) oxide

D) LiOH lithium hydroxide

E) MgO magnesium oxide

57) Which of the following formula/name pairs is incorrect?

A) BaBr2 barium bromide

B) CuO copper(II) oxide

C) MgCl2 magnesium dichloride

D) Sr(OH)2 strontium hydroxide

E) LiNO3 lithium nitrate

58) Which of the following formula/name pairs is incorrect?

A) K2SO4 potassium sulfate

B) Na3N sodium nitride

C) Li2CO3 lithium carbonate

D) Fe2O3 iron(II) oxide

E) Cu2S copper(I) sulfide

59) Which of the following formula/name pairs is incorrect?

A) MnO manganese(II) oxide

B) CaO calcium oxide

C) MgCl2 magnesium chloride

D) AlP aluminum phosphide

E) Li2SO3 dilithium sulfite

60) Which of the following formula/name pairs is incorrect?

A) RbS rubidium sulfide

B) K2CO3 potassium carbonate

C) NaClO4 sodium chloroxate

D) Fe2S3 iron(III) sulfide

E) K2O potassium oxide

61) Which of the following is the correct formula for the compound with the name calcium nitride?

A) CaN

B) Ca3N2

C) Ca2N3

D) CaN2

E) Ca2N

62) Which of the following is the correct formula for the compound with the name iron(II) phosphate?

A) FeP

B) Fe3(PO4)2

C) FePO4

D) Fe2(PO3)3

E) Fe2(PO4)3

63) Which of the following is the correct formula for the compound with the name copper(II) sulfate?

A) Cu2S

B) CuS2

C) Cu2SO4

D) CuSO4

E) CuSO3

64) Which of the following is the correct formula for the compound with the name manganese(II) phosphate?

A) Mn3(PO4)2

B) Mn2(PO4)3

C) MnPO4

D) Mn3P2

E) Mn2P3

65) Which of the following is the correct formula for the compound with the name aluminum sulfide?

A) AlS

B) Al3S2

C) Al2S3

D) AlSO4

E) Al2(SO4)3

66) The formula for barium carbonate is:

A) Ba2CO3

B) BaCO3

C) BaCO2

D) BaCO

67) The formula for copper(I) sulfide is:

A) CuS

B) CuS2

C) Cu2S

D) CuSO4

E) Cu2SO4

68) The formula for calcium nitrate is:

A) CaNO3

B) Ca2NO3

C) Ca(NO3)2

D) Ca(NO3)3

E) Ca(NO2)2

69) Which of the following is the correct name for the compound CoBr2?

A) cobalt bromide

B) cobalt(II) bromide

C) cobalt dibromide

D) cobalt(II) bromate

E) cobalt(IV) bromide

70) Which of the following is the correct name for the compound Mn2O3?

A) dimanganese trioxide

B) manganate ion

C) manganese(III) oxide

D) manganese(II) oxide

E) manganese oxide

71) Which of the following is the correct name for the compound FeSO4?

A) iron(II) sulfate

B) iron(IV) sulfate

C) iron sulfate

D) iron sulfur tetroxide

E) iron sulfite

72) Which of the following compound names is not correct?

A) calcium hydroxide

B) iron(II) dichloride

C) potassium fluoride

D) sodium cyanide

E) ammonium hydroxide

73) Which of the following compound names is not correct?

A) strontium dinitrate

B) sodium oxide

C) copper(II) carbonate

D) potassium permanganate

E) silver chloride

74) Which of the following compound names is not correct?

A) iron(III) sulfate

B) copper(II) diphosphide

C) sodium hydroxide

D) potassium nitrate

E) calcium sulfide

75) Suppose you need iron(II) phosphate for an experiment. Which of these compounds would you use?

A) FeP

B) Fe3P2

C) Fe2(PO4)3

D) Fe2P3

E) Fe3(PO4)2

76) The correct formulas for the compounds in the figure are:

A) NF3, P4O10, C2H4Cl2

B) NF3, P4O8, C2H4Cl2

C) NF3, P4O10, C2H2Cl4

D) NF4, P3O10, C2H2Cl4

E) NF4, P3O10, C2H2Cl2

77) The correct formulas for the compounds in the figure are:

A) Cl3P, Cl6S, C3H2F6

B) PCl3, SCl6, C3H6F2

C) PCl3, SCl4, C3H6F3

D) P3Cl, S6Cl, C3H6F2

E) PCl3, SCl8, C3H6F2

78) The compound ClO3 is a dark brown solid powder that is not stable above 25ºC. Name this molecular compound.

A) chlorine trioxide

B) chlorine oxide

C) chlorate

D) chlorite

E) chlorine(VI) oxide

79) The compound SO2 is a colorless gas with a boiling of –10°C. Name this molecular compound.

A) sulfate

B) sulfite

C) sulfur(IV) oxide

D) sulfur dioxide

E) sulfur(II) oxide

80) The compound NO2 is a reddish brown gas with a boiling of 21°C. Name this molecular compound.

A) nitrogen (IV) oxide

B) nitrogen dioxide

C) nitrogen oxide

D) nitrate

E) nitrite

81) Which of the following formula/name combinations is incorrect?

A) N2O4 dinitrogen tetroxide

B) ClO2 dichlorine oxide

C) SO3 sulfur trioxide

D) CS2 carbon disulfide

E) PCl3 phosphorus trichloride

82) Which of the following formula/name combinations is incorrect?

A) CS2 carbon disulfide

B) SO2 sulfur dioxide

C) N2O5 dinitrogen tetroxide

D) PF3 phosphorus trifluoride

E) P4O10 tetraphosphorus decoxide

83) Which of the following formula/name combinations is incorrect?

A) SF6 sulfur hexafluoride

B) NO2 nitrogen dioxide

C) PF5 phosphorus pentafluoride

D) BN boron nitride

E) ICl7 iodine hexachloride

84) Which of the following formula/name combinations is incorrect?

A) SO3 sulfur trioxide

B) NI3 nitrogen triiodide

C) CO carbon monoxide

D) SF4 sulfur pentafluoride

E) ClO2 chlorine dioxide

85) The correct formula for tetraphosphorus hexasulfide is:

A) PS

B) P5S7

C) P5S6

D) P4S7

E) P4S6

86) The correct formula for dinitrogen pentoxide is:

A) NO5

B) N2O4

C) N2O5

D) NO6

E) N2O6

87) The correct formula for tetraphosphorus hexoxide is:

A) PO6

B) P5O6

C) P4O7

D) P4O6

E) P5O7

88) Which of the following formula/name combinations is incorrect?

A) HF(aq) hydrofluoric acid

B) HNO3(aq) nitrous acid

C) H2SO4(aq) sulfuric acid

D) HClO4(aq) perchloric acid

E) H3PO3(aq) phosphorous acid

89) Which of the following formula/name combinations is incorrect?

A) HNO2(aq) nitrous acid

B) HBr(aq) hydrobromic acid

C) H2SO3(aq) sulfurous acid

D) HClO2(aq) hypochlorous acid

E) H3PO4(aq) phosphoric acid

90) Which of the following formula/name combinations is incorrect?

A) HI(aq) hydroiodic acid

B) H2S(aq) hydrosulfuric acid

C) HClO3(aq) chloric acid

D) H2SO3(aq) sulfurous acid

E) H3PO3(aq) phosphoric acid

91) Which of the following is formed when (NH4)2SO4 dissolves in water?

A) (NH4)22+ + SO42–

B) 2NH3 + 2H+ +SO42–

C) 2NH4+ + SO42–

D) 2N3– + 8H+ + S+6 + 4O2–

E) 2N3– + 8H+ + SO42–

92) Which of the following is formed when Ca(NO3)2 dissolves in water?

A) Ca2+ + (NO3)22–

B) Ca + (NO3)2

C) Ca+ + 2NO3–

D) Ca2+ + 2NO3−

E) Ca2+ + 2N3– + 6O2–

93) Which set of ions is formed when Cu2SO4 dissolves in water?

A) 2Cu2+ + SO42–

B) Cu2+ + SO42–

C) Cu2+ + 2SO42–

D) 2Cu+ + S+6 + 4O2–

E) Cu22+ + 2SO42–

94) Which set of formulas is correct for the compounds calcium hydrogen carbonate, magnesium chloride, and calcium sulfate, which can cause scale build-up in pipes?

A) CaHCO3, MgCl2, and Ca(SO4)2

B) CaHCO3, MgCl, and Ca(SO4)2

C) Ca(HCO3)2, MgCl, and CaSO4

D) Ca(HCO3)2, MgCl2, and CaSO4

E) Ca(HCO3)2, MgCl2, and Ca2SO4

95) Which set of formulas is correct for the compounds ammonia, nitric acid, and nitrous acid, respectively?

A) NH3, HN, HNO

B) NH4, HNO2, HNO3

C) NH3, HNO2, HNO3

D) NH3, HNO3, HNO2

E) NH4, HNO3, HNO2

96) Aluminum sulfate, calcium oxide, and water react together in a process used to remove solids from treated water. Which set of formulas correspond to these compounds?

A) AlSO4, Ca2O, H2O

B) Al3(SO4)2, Ca2O, H2O

C) Al2(SO4)3, Ca2O, H2O2

D) Al2(SO4)3, CaO2, H2O2

E) Al2(SO4)3, CaO, H2O

97) Which of the following compounds should be crystalline, brittle solids at room temperature and are electrolytes?

MgCl2, CCl4, N2O4, NaOH

A) MgCl2 and CCl4

B) N2O4 only

C) N2O4 and NaOH

D) NaOH only

E) MgCl2 and NaOH

98) Which of the following compounds would you expect to exist as ions when dissolved in water?

KNO3, HBr, CH3OH

A) KNO3 only

B) HBr only

C) CH3OH only

D) KNO3 and HBr

E) HCl and CH3OH

99) Which of the following would you expect to be nonelectrolytes when dissolved in water?

MgCl2, CH3OH, N2

A) MgCl2 only

B) CH3OH only

C) N2 only

D) MgCl2 and CH3OH

E) CH3OH and N2

100) Which of the following compounds would you expect to have the lowest melting point?

A) CaO

B) H2O

C) Na2O

D) LiCl

E) NaH

101) Which of the following best describes HCl when dissolved in water?

A) strong electrolyte

B) weak electrolyte

C) nonelectrolyte

D) exists as atoms and molecules

E) exists as molecules only

102) SO3 and SO32− have the same number of each type of atom, so they have the same name and the same chemical properties.

103) Water has H at the beginning of its formula, so it is considered to be an acid.

104) The central atom is normally listed first in the formula for a binary molecule or ion.

105) When naming binary molecular compounds, it is always unnecessary to use Greek prefixes.

106) From their position in the periodic table, we would predict that both oxygen and sulfur would have a charge of 2− in a binary ionic compound.

107) In the old system of naming ionic compounds formed from metals with two different charges, the suffix –ous is used for the higher charge, while the suffix –ic indicates the lower charge.

108) Polyatomic ions that contain oxygen attached to some other element are called oxoanions.

109) Nonelectrolytes are compounds which break apart into ions when dissolved in water.

110) A molecular compound is composed of atoms of a metal and a nonmetal.

111) Most molecular compounds remain as molecules when dissolved in water.

112) When a substance dissolves, heat is added to the compound in the solid state, and it is converted to the liquid state. When a substance melts, as in water, the substance becomes surrounded by solvent molecules, and no heat is added.

113) Methane, CH4, and acetic acid, CH3CO2H, are both acids because they both contain hydrogen.