5.E: Homework Chapter 5 Answers
- Page ID
- 202147
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3. H+ for hydrogen ion; H- for hydride ion
5.
a. Nitrogen,1; Hydrogen,4; Chlorine,1.
b. Sodium,1; Carbon,1; Nitrogen,1.
c. Barium,1; Hydrogen,2; Carbon,2; Oxygen,6.
d. Calcium,1; Nitrogen,2; Oxygen,4.
e. Magnesium,1; Chlorine,2.
7. a. not a molecule b. a molecule; four atoms total c. a molecule; four atoms total
9.
Formula |
Number of SO42- Units |
Number of Sulfur Atoms |
Number of Oxygen atoms |
Number of metal atoms |
CaSO4 |
1 |
1 |
4 |
1 |
Al2(SO4)3 |
3 |
3 |
12 |
2 |
K2SO4 |
1 |
1 |
4 |
2 |
11. MgO, Magnesium Oxide
13. a) covalent b) ionic c) ionic d) covalent e) covalent
15. a. ionic b. ionic c. molecular d. ionic
17. a. atomic b. atomic c. molecular d. molecular
19. a. molecular b. molecular c. atomic d. atomic
21. a. molecular b. molecular c. atomic d. ionic
23. a. covalent b. ionic c. covalent d. covalent
25. Name the cation and then the anion but don’t use numerical prefixes.
27. Ionic compounds in which the cation can have more than one possible charge have two naming systems. FeCl3 is either iron(III) chloride or ferric chloride (answers will vary).
29.
a. iron(III) bromide or ferric bromide
b. iron(II) bromide or ferrous bromide
c. gold(III) sulfide or auric sulfide
d. gold(I) sulfide or aurous sulfide
31.
a. NaOCl
b. KOH
c. NH4NO3
d. Al2(SO3)3
e. Fe(CN)3
33.
a. 1 aluminum ion & 3 hydroxide ions
b. 3 lithium ions & 1 phosphate ion
c. 1 potassium ion & 1 chloride ion
d. 1 zinc ion & 2 fluoride ions
e. 2 sodium ions and 1 oxide ions
35.
a. mercury(I) sulfide
b. chromium(III) oxide
c. potassium sulfae
d. iorn(III) carbonate
e. zinc hypochlorite
37.
- Ba(C2H3O2)2 barium acetate
- (NH4)2SO4 ammonium sulfate
- Zn(ClO)2 zinc hypochlorite
- Al(OH)3 aluminum hydroxide
- Na2CO3 sodium carbonate
39. HgO and Hg2O
41. a) K3PO4; (b) CuSO4; (c) CaCl2; (d) TiO2; (e) NH4NO3; (f) NaHSO4
43. (a) cesium chloride; (b) barium oxide; (c) potassium sulfide; (d) beryllium chloride; (e) hydrogen bromide; (f) aluminum fluoride
45.
a. dinitrogen tetroxide
b. sulfur hexachloride
c. carbon tetrabromide
d. Diphosphorus pentoxide
e. chlorine heptafluoride
47. a. Nitrogen trichloride; b. Carbon tetraiodide; c. Carbon monoxide; d. correct
49. a. Carbon tetrafluoride; b. dichlorine trioxide; c. tetraiodine nonaoxide; d. sulfur hexafluoride
51. a. Nitrogen tribromide b. Oxygen gas c. Ammonia (nitrogen trihydride) d. methane (carbon tetrahydride)
53.
a. 295.50 amu b. 215.60 amu c. 490.30 amu d. 426.10 amu
55.
a. 158.04 amu b. 62.03 amu c. 304.23 amu d. 262.87 amu
57.
Ionic compound |
Cation Symbol and name |
Anion symbol and name |
NaC2H3O2 |
Na+ ; sodium |
C2H3O2- ; acetate |
Cr(NO3)3 |
Cr3+ ; chromium(III) |
NO3- ; nitrate |
PbCl2 |
Pb2+ ; lead(II) |
Cl- ; chlorine |
Hg3(PO4)2 |
Hg2+ ; mercury(II) |
PO43- ; phosphate |
Ca(HCO3)2 |
Ca2+ ; Calcium |
HCO3- ; bicarbonate |
59.
Formula Unit |
Chemical Name |
MgS |
Magnesium sulfide |
Al2O3 |
Aluminum Oxide |
Fe(OH)3 |
Iron(III)hydroxide |
CuCl2 |
Copper(II) chloride |
Pb(CO3)2 |
Lead(IV) carbonate |
Zn(HCO3)2 |
Zinc bicarbonate |
CaSO4 |
Calcium sulfate |
NaC2H3O2 |
Sodium acetate |
BaBr2 |
Barium bromide |
NH4NO3 |
Ammonium nitrate |
61.
Ion |
K+ |
Fe3+ |
NH4+ |
Ba2+ |
Cl- |
KCl |
FeCl3 |
NH4Cl |
BaCl2 |
SO42- |
K2SO4 |
Fe2(SO4)3 |
(NH4)2SO4 |
BaSO4 |
PO43- |
K3PO4 |
FePO4 |
(NH4)3PO4 |
Ba3(PO4)2 |
NO3- |
KNO3 |
Fe(NO3)3 |
NH4NO3 |
Ba(NO3)2 |
OH- |
KOH |
Fe(OH)3 |
NH4OH |
Ba(OH)2 |
63. a. Sulfur tetrafluoride b. Potassium Oxide c. Calcium Iodide d. Phosphorus pentabromide
65.
- Sodium Chloride, 58.44 amu
- Silver Nitrate, 169.88 amu
- Aluminum Fluoride, 83.98 amu
- Iodine pentafluoride, 221.90 amu
67. A. H2O b. NH3 c. CH4 d. CO2
69.
Formula |
Type of compound |
Name |
K3N |
ionic |
Potassium nitride |
SiCl4 |
Molecular |
Silicon tetrachloride |
CO |
molecular |
Carbon monoxide |
NBr3 |
molecular |
Nitrogen tribromide |
71.
- Copper(I) phosphate, 285.62 amu
- Tetrasulfur dinitride, 156.26 amu
- Lead (II) sulfide, 239.26 amu
- Vanadium (IV) oxide, 82.94 amu
73.
- 639.2 amu
- 379.7 amu
- 210.4 amu
- 188.2 amu
- 225.8 amu