Chapter 22 – Nonmetallic Elements and Their Compounds
24. Which of these industrial chemicals is produced in the greatest amount annually?
25. Which one of the following compounds can react with water to form oxygen gas?
26. Which one of the following compounds can react with water to form hydrogen gas?
Chapter 22 – Nonmetallic Elements and Their Compounds
28. In which of the following compounds is sulfur in a positive oxidation state?
Chapter 22 – Nonmetallic Elements and Their Compounds
29. Which of these substances is the active ingredient in ordinary household bleach?
30. The main commercial source of bromine is
31. Chlorine gas is prepared commercially by
32. What element is the most abundant by mass in Earth’s crust?
33. Choose the formula that does not represent a stable allotrope.
34. List the following acids in order of increasing acid strength: HOCl, HClO3, HClO4.
Chapter 22 – Nonmetallic Elements and Their Compounds
35. Choose the true statement concerning the relative acid strengths of H2SO4 and H2SO3.
36. The bond energy of F2 is unusually low, in comparison with the other halogens, due to the
small size of the fluorine atom. Which of the following periodic properties is also unusually
low in the case of fluorine?
Chapter 22 – Nonmetallic Elements and Their Compounds
37. Which of these aqueous solutions has the highest pH?
38. Which of these aqueous solutions has the lowest pH?
Chapter 22 – Nonmetallic Elements and Their Compounds
39.
Select True or False: Hydrogen plays an important role in many industrial processes. The following correctly represents a
balanced chemical equation for its production by the water gas reaction.
C(s) + H2O(g) → CO(g) + H2(g)
40.
Select True or False: Hydrogen plays an important role in many industrial processes. The following correctly represents a
balanced chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas) and steam.
2 C3H8(g) + 3H2O(g) → 6CO(g) + 7H2(g)
Chapter 22 – Nonmetallic Elements and Their Compounds
41. Write the formula for the binary hydride you would expect calcium to form.
42.
Select True or False: Carborundum, silicon carbide, SiC(s), can be prepared by reacting silicon dioxide with carbon as shown
in the following balanced chemical equation:
SiO2(s) + 3C(s) → SiC(s) + 2CO(g)
Chapter 22 – Nonmetallic Elements and Their Compounds
43. Select True or False: It is especially dangerous to mix cyanide salts with acids because the
cyanide ion reacts with acid to form hydrogen cyanide, a very weak acid that comes out of
solution as a gas. Inhaled in even very small amounts it can rapidly cause death.
44.
Select True or False: The following accurately depicts the balanced chemical equation for a laboratory preparation of
nitrogen gas.
NH4NO2(s) → 2H2O(g) + N2(g)
Chapter 22 – Nonmetallic Elements and Their Compounds
45. Write the chemical formula of the oxide ion.
46. Write the chemical formula of the peroxide ion.
Chapter 22 – Nonmetallic Elements and Their Compounds
47. Write the chemical formula of the superoxide ion.
48.
Select True or False: The following is a balanced chemical equation that depicts the production of chlorine by the chlor-alkali
process.
Chapter 22 – Nonmetallic Elements and Their Compounds
49. Select True or False: Of the three oxides SiO2, MgO, and P4O10, the most acidic oxide is
50. Select True or False: P4O6 and P4O10 are allotropes of phosphorus.
52. Select True or False: The chemistry of fluorine differs in many ways from that of the rest
of the halogens.