Answers to Questions & Problems in Textbook - Chapter 4

1. A binary compound is one that contains only two elements. Examples are sodium chloride, water, and carbon dioxide.
2. in your text
3. Cation, anion
4. in your text
5. in your text
6.

1. in your text
2. calcium fluoride
3. in your text
4. calcium bromide
5. strontium oxide
6. in your text
7. cesium iodide
8. in your text

7.

1. in your text
2. incorrect; Na2O is sodium oxide
3. in your text
4. incorrect; SiO2 is silicon dioxide
5. correct

8.

1. in your text
2. Since each chloride ion has a 1- charge, the manganese must have a 2+ charge: the name is manganese(II) chloride.
3. in your text
4. Since the oxide ion has a 2- charge, the copper atoms must each have a 1+ charge: the name is copper(I) oxide.
5. in your text
6. Since each bromide ion has a 1- charge, the tin ion must have a 4+ charge: tin(IV) bromide.

9.

1. in your text
2. Since each bromide ion has a 1- charge, the chromium ion must have a 3+ charge: the name is chromic bromide.
3. in your text
4. Since each oxide ion has a 2- charge, the tin ion must have a 4+ charge: the name is stannic oxide.
5. in your text
6. Since each chloride ion has a 1- charge, the iron ion must have a 3+ charge: the name is ferric chloride.

10.

1. in your text
2. arsenic trichloride
3. in your text
4. xenon tetrafluoride
5. in your text
6. diboron trioxide

11.

1. in your text
2. dinitrogen tetrabromide
3. in your text
4. selenium dioxide
5. in your text
6. silicon dioxide

12.

1. in your text
2. calcium nitride-ionic
3. in your text
4. silver sulfide-ionic
5. in your text
6. chlorine monofluoride-nonionic

13.

1. in your text
2. selenium chloride-nonionic
3. in your text
4. sodium phosphide-ionic
5. in your text
6. zinc oxide-ionic

14. in your text
15. Perchlorate, ClO4-^1
16. in your text
17.

1. NO3^-1
2. NO2^-1
3. NH4^+1
4. CN^-1

18.

1. Cl^-1
2. ClO^-1
3. ClO3^-1
4. ClO4^-1

19.

1. in your text
2. Ca(ClO)2
3. in your text
4. Ba(ClO4)2

20.

1. premanganate
2. peroxide
3. chromate
4. dichromate
5. nitrate
6. sulfite

21.

1. in your text
2. cobalt(II) phosphate, cobaltous phosphate
3. in your text
4. aluminum sulfate
5. in your text
6. ammonium sulfite

22. An acid is a substance which produces hydrogen ions, H^+1, when dissolved in water
23. oxygen (commonly referred to as oxyacids)
24.

1. in your text
2. sulfuric acid
3. in your text
4. hydroiodic acid
5. in your text
6. chloric acid
7. in your text
8. hydrofluoric acid
9. acetic acid

25.

1. in your text
2. AlI3
3. in your text
4. K3N
5. in your text
6. MgF2
7. in your text
8. BaH2

26.

1. in your text
2. SO2
3. in your text
4. CI4
5. in your text
6. P2O5

27.

1. in your text
2. NH4NO3
3. in your text
4. BaSO4
5. in your text
6. CuOH

28.

1. in your text
2. HNO3
3. in your text
4. H3PO4
5. in your text
6. HBr
7. in your text
8. HF

29.

1. in your text
2. Cu2CO3
3. in your text
4. Ca(NO3)2
5. in your text
6. Al(OH)3
7. in your text
8. FeSO4
9. in your text
10. PBr5
11. in your text
12. Ba(C2H3O2)2

30. in your text
31. in your text
32.

1. in your text
2. cobalt(III) cyanide, cobaltic cyanide
3. in your text
4. diboron hexahydride (diborane is its common name)
5. in your text
6. silver(I) sulfate (usually called silver sulfate)
7. beryllium hydroxide

33.

1. in your text
2. ammonium hydrogencarbonate, ammonium bicarbonate
3. in your text
4. sulfurous acid
5. in your text
6. iodic acid
7. potassium hydride

34.

1. in your text
2. MgO
3. in your text
4. Fe2O3
5. in your text
6. PbO
7. Al2O3

35. M+ compunds: MD, M2E, M2=3F M2+ compounds: MD2, ME, M,sub>3F2 M3+ compounds: MD3, M2E3, MF
36.
37. in your text
38. 1-e, 2-a, 3-a, 4-g, 5-g, 6-f, 7-g, 8-a, 9-e, 10-j
39.

1. in your text
2. S(16e-) + 2e- --> S2-(18e-)
3. in your text
4. F(9e-) + e- --> F- (10e-)
5. in your text
6. P(15e-) + 3e- --> P3- (18e-)

40.

1. in your text
2. Ga^+3
3. in your text
4. Tl^+3
5. in your text
6. Fr^+1

41.

1. in your text
2. one 1+ ion exactly balances a 1- ion, so the formula should have an equal number of K^+1 and Cl^-1 ions: KCl
3. in your text
4. One 2+ ion exactly balances a 2- ion, so the formula must have an equal number of Mg^+2 and Se^-2 ions: MgSe
5. in your text
6. One 3+ ion requires three 1- ions to balance the charge, so the formula must have three times as many I^-1 ions as Al^+3 ions: AlI3
7. in your text
8. Three 2+ ions are required to balance two 3- ions, so the formula must contain three Ca^+2 ions for every two N^-3 ions: Ca3N2

42.

1. in your text
2. magnesium oxide
3. in your text
4. aluminum oxide
5. in your text
6. lithium fluoride
7. in your text
8. calcium hydride

43.

1. in your text
2. incorrect. Co is the symbol for cobalt, not copper.
3. in your text
4. correct
5. incorrect. P is just "phosphorous" not "phosphoric".

44.

1. in your text
2. Since the sulfide ion always has a 2- charge, the cobalt ion must be in the 2+ state: the name is cobalt(II) sulfide.
3. in your text
4. Since oxide ion always has a 2- charge, the tin ion must be in the 4+ state: the name is tin (IV) oxide.
5. in your text
6. Since chloride ion always has a 1- charge, the mercury ion must be in the 2+ state: the name is mercury(II) chloride.

45.

1. in your text
2. oxygen difluoride
3. in your text
4. dinitrogen tetraoxide (tetroxide)
5. in your text
6. sulfur hexafluoride

46.

1. in your text
2. bromine monofluoride
3. in your text
4. silicon tetrabromide
5. in your text
6. calcium chromate

47.

1. in your text
2. copper(II) cyanide
3. in your text
4. sodium hydrogen phosphate
5. in your text
6. cobalt(III) sulfate

48.

1. in your text
2. Ag2O
3. in your text
4. BeBr2
5. in your text
6. KH
7. in your text
8. CsF

49.

1. in your text
2. N2O
3. in your text
4. P4O10
5. in your text
6. SF6
7. NO2

50.

1. in your text
2. LiClO4
3. in your text
4. KC2H3O2
5. in your text
6. Cs2SO3

51.

1. in your text
2. Co(OH)3
3. in your text
4. K2Cr2O7
5. in your text
6. Fe(OH)3
7. in your text
8. KBrO4