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CHAPTER

6

Language of Chemistry

Section 6.1 Classification of Compounds 2.

4.

(a) (c)

Compound NH3 BaSO4

(a) (c)

Ion NH4 + S2 –

Classification binary molecular ternary ionic Classification polyatomic cation monoatomic anion

Compound (b) Fe2 O3 (d) H2 SO4 (aq) Ion (b) Sr2+ (d) SO4 2 –

Classification binary ionic ternary acid Classification monoatomic cation polyatomic anion

Section 6.2 Monoatomic Ions 6.

8.

10.

(a) (b) (c) (d)

Monoatomic Cation Ba2+ Zn2+ Co3+ Cu+

Stock System Name barium ion zinc ion cobalt(III) ion copper(I) ion

(a) (b) (c) (d)

Monoatomic Cation lithium ion silver ion iron(III) ion tin(IV) ion

Chemical Formula Li+ Ag+ Fe3+ Sn4+

(a) (b) (c) (d)

Monoatomic Cation Cu+ Fe3+ Sn4+ Pb4+

Latin System Name cuprous ion ferric ion stannic ion plumbic ion

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12.

14.

(a) (b)

Monoatomic Cation mercurous ion mercuric ion

Chemical Formula Hg2 2+ Hg2+

Monoatomic Anion (a) O2 – (b) S2 – (c) N3 – (d) P3 –

Systematic Name oxide ion sulfide ion nitride ion phosphide ion

Section 6.3 Polyatomic Ions 16.

18.

(a) (b) (c) (d)

Oxyanion CO3 2 – HCO3 – SO4 2 – HSO4 –

Systematic Name carbonate ion hydrogen carbonate ion sulfate ion hydrogen sulfate ion

(a) (b) (c) (d)

Polyatomic Ion chlorate ion perchlorate ion permanganate ion acetate ion

Chemical Formula ClO3 – ClO4 – MnO4 – C 2 H3 O2 –

Section 6.4 Writing Chemical Formulas 20.

22.

24.

34

Constituent Ions (a) Li+ + Cl– (b) 2 Ag+ + O2 – (c) Cr3+ + 3 I– (d) 3 Sn2+ + 2 N3 –

Chemical Formula LiCl Ag2 O CrI3 Sn3 N2

(a) (b) (c) (d)

Constituent Ions Fe3+ + 3 HCO3 – 2 Cu+ + CO3 2 – Hg2+ + 2 CN– Sn4+ + 4 C2 H3 O2 –

Chemical Formula Fe(HCO3 )3 Cu2 CO3 Hg(CN)2 Sn(C2 H3 O2 )4

(a) (b) (c) (d)

Constituent Ions Pb4+ + 2 SO4 2 – Sn2+ + 2 ClO2 – Co2+ + 2 OH– 3 Hg2 2+ + 2 PO4 3 –

Chemical Formula Pb(SO4 )2 Sn(ClO2 )2 Co(OH)2 (Hg2 )3 (PO4 )2

Chapter 6

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Section 6.5 Binary Ionic Compounds 26.

28.

30.

32.

34.

(a) (b) (c) (d)

Binary Ionic Compound LiBr SrI2 Na3 N AlF3

Binary Ionic Compound (a) MnCl2 (b) NiF2 (c) SnBr2 (d) CrP

Stock System Name lithium bromide strontium iodide sodium nitride aluminum fluoride Stock System Name manganese(II) chloride nickel(II) fluoride tin(II) bromide chromium(III) phosphide

(a) (b) (c) (d)

Binary Ionic Compound cuprous sulfide ferrous phosphide mercuric iodide plumbic oxide

Chemical Formula Cu2 S Fe3 P2 HgI2 PbO2

(a) (b)

Binary Ionic Compound beryllium oxide calcium selenide

Chemical Formula BeO CaSe

(a) (b)

Binary Ionic Compound zirconium oxide titanium sulfide

Chemical Formula ZrO2 TiS2

Section 6.6 Ternary Ionic Compounds 36.

38.

40.

(a) (b) (c) (d)

Ternary Ionic Compound KClO3 Mg(NO3 )2 Ag2 SO4 Al2 (CrO4 )3

Stock System Name potassium chlorate magnesium nitrate silver sulfate aluminum chromate

(a) (b) (c) (d)

Ternary Ionic Compound Cu2 SO4 Fe2 (CrO4 )3 Hg2 (NO2 )2 Pb(C2 H3 O2 )4

Latin System Name cuprous sulfate ferric chromate mercurous nitrite plumbic acetate

(a) (b) (c) (d)

Ternary Ionic Compound cuprous chlorite plumbic sulfite mercuric chlorate ferrous chromate

Chemical Formula CuClO2 Pb(SO3 )2 Hg(ClO3 )2 FeCrO4

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42.

44.

(a) (b)

Ternary Ionic Compound lanthanum nitrate scandium nitrite

Chemical Formula La(NO3 )3 Sc(NO2 )3

(a) (b)

Ternary Ionic Compound cobalt(III) sulfate iron(III) selenate

Chemical Formula Co2 (SO4 )3 Fe2 (SeO4 )3

Section 6.7 Binary Molecular Compounds 46.

48.

(a) (b) (c) (d)

Binary Molecular Compound BrCl SF6 I4 O9 Cl2 O7

Systematic Name bromine monochloride sulfur hexafluoride tetraiodine nonaoxide dichlorine heptaoxide

(a) (b) (c) (d)

Binary Molecular Compound chlorine dioxide sulfur tetrafluoride iodine monochloride nitrogen monoxide

Chemical Formula ClO2 SF4 ICl NO

Section 6.8 Binary Acids 50.

(a) (b)

Binary Acid hydrosulfuric acid hydroselenic acid

Chemical Formula H2 S(aq) H2 Se(aq)

Section 6.9 Ternary Oxyacids 52.

54.

56.

36

(a) (b)

Ternary Oxyacid HClO4 (aq) H2 SO3 (aq)

Systematic Name perchloric acid sulfurous acid

(a) (b)

Systematic Name carbonic acid nitrous acid

Ternary Oxyacid H2 CO3 (aq) HNO2 (aq)

(a) (b)

Systematic Name arsenic acid phosphorus acid

Ternary Oxyacid H3 AsO4 (aq) H3 PO3 (aq)

Chapter 6

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General Exercises 58.

(a) (b) (c) (d)

Substance chlorine gas molecules chloride ions hypochlorite ions chlorine compounds

Ionic Charge 0 1– 1– 0

(Note: The total ionic charge on a compound is zero.) 60.

(a) (b)

Polyatomic Anion SCN? – S2 O3 ? –

Valence Electrons 6 + 4 + 5 = 15 e– 2(6) + 3(6) = 30 e–

(thus, 1–) (thus, 2–)

(Note: The polyatomic anion with a charge of 1– is SCN– because the total of the valence electrons is an odd number (15). 62. IONS

fluoride ion

oxide ion

CuO

nitride ion

copper(II)

CuF2

ion

copper(II) fluoride

copper(II) oxide

copper(II) nitride

Cu3 N2

cobalt(II)

CoF2

CoO

Co3 N2

ion

cobalt(II) fluoride

cobalt(II) oxide

cobalt(II) nitride

lead(II)

PbF2

PbO

Pb3 N2

ion

lead(II) fluoride

lead(II) oxide

lead(II) nitride

IONS

cyanide ion

sulfite ion

permanganate ion

64. mercuric

Hg(CN)2

HgSO3

Hg(MnO4 )2

ion

mercuric cyanide

mercuric sulfite

mercuric permanganate

ferric

Fe(CN)3

Fe2 (SO3 )3

Fe(MnO4 )3

ion

ferric cyanide

ferric sulfite

ferric permanganate

stannic

Sn(CN)4

Sn(SO3 )2

Sn(MnO4 )4

ion

stannic cyanide

stannic sulfite

stannic permanganate

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66.

68.

70.

72.

(a)

Compound NaI

Suffix Ending –ide

(b)

Binary Acid HI(aq)

Suffix Ending –ic acid

(a)

Compound NaIO2

Suffix Ending –ite

(b)

Ternary Oxyacid Suffix Ending HIO2 (aq) –ous acid

(a)

Compound NaIO3

Suffix Ending –ate

(b)

Ternary Oxyacid Suffix Ending HIO3 (aq) –ic acid

(a) (b) (c) (d)

Chemical Name acetic acid aqueous nitrogen trihydride aqueous magnesium hydroxide aqueous sodium bisulfate

Chemical Formula HC2 H3 O2 (aq) NH3 (aq) Mg(OH)2 (aq) NaHSO4 (aq)

74.

Binary Compound (a) boron tribromide (b) trisilicon tetranitride (c) diarsenic trioxide (d) diantimony pentaoxide

Chemical Formula BBr3 Si3 N4 As2 O3 Sb2 O5

76.

Given Formula TiSiO4

Predicted Formula ZrSiO4

Challenge Exercises 78.

Given Formula LuCl3

Predicted Formula LwCl3

Online Exercises 80.

38

Manganese is an enzyme cofactor that is essential for speeding up chemical reactions that regulate metabolism. The human body contains about 12 mg of manganese, which is stored in bones, the liver, kidneys, and the brain.

Chapter 6

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