Question 1

What effect does substitution of K2O for Na2O in making soda- lime glass have in its properties?

Accepted Answer

increases

Question 2

What are the three steps in the Ostwald process of nitric acid synthesis?

Accepted Answer

1. oxidation of ammo

Question 3

Which of the following is not an allotropic form of carbon?

Accepted Answer

A)  carbide 
B)  buckminsterfullerene 
C)  graphite 
D)  diamond 
E)  All of the above are allotropic forms of carbon. 
A)  carbide 
B)  buckminsterfullerene 
C)  graphite 
D)  diamond 
E)  All of the above are allotropic forms of carbon.

Question 4

What is the formula of borax ?

Accepted Answer

A)  Na2B4O7·10H2O 
B)  B2O3 
C)  H3BO3 
D)  H2B4O7 
E)  P5O8 
A)  Na2B4O7·10H2O 
B)  B2O3 
C)  H3BO3 
D)  H2B4O7 
E)  P5O8

Question 5

Diborane is .

Accepted Answer

A)  BH3  
B)  B2O3  
C)  B2H6  
D)  H3BO3  
E)  B10H14 
A)  BH3  
B)  B2O3  
C)  B2H6  
D)  H3BO3  
E)  B10H14

Question 6

Which compound would produce an acidic aqueous solution?

Accepted Answer

A)  H2S 
B)  H2O 
C)  CaH2  
D)  KH 
E)  NH3 
A)  H2S 
B)  H2O 
C)  CaH2  
D)  KH 
E)  NH3

Question 7

Which elemental halogen(s) can be used to prepare I2 from NaI?

Accepted Answer

A)  Br2 only 
B)  F2 only 
C)  Cl2 only 
D)  both Cl2 and Br2, but not F2 
E)  F2, Cl2, and Br2 
A)  Br2 only 
B)  F2 only 
C)  Cl2 only 
D)  both Cl2 and Br2, but not F2 
E)  F2, Cl2, and Br2

Question 8

Which of the following would produce an acidic solution?

Accepted Answer

A)  CO2 only 
B)  BeH2 only 
C)  CO, CO2, and BeH2 
D)  Na2O, MgO, and BeH2 
E)  Na2O and MgO 
A)  CO2 only 
B)  BeH2 only 
C)  CO, CO2, and BeH2 
D)  Na2O, MgO, and BeH2 
E)  Na2O and MgO

Question 9

H2 is reacted with to produce methanol.

Accepted Answer

Question 10

The heavier noble gases are more reactive than the lighter ones because

Accepted Answer

A)  the lighter noble gases have complete octets. 
B)  the heavier noble gases are more abundant. 
C)  the lighter noble gases exist as diatomic molecules. 
D)  the heavier noble gases have low ionization energies relative to the lighter ones. 
E)  the heavier noble gases have greater electron affinities. 
A)  the lighter noble gases have complete octets. 
B)  the heavier noble gases are more abundant. 
C)  the lighter noble gases exist as diatomic molecules. 
D)  the heavier noble gases have low ionization energies relative to the lighter ones. 
E)  the heavier noble gases have greater electron affinities.

Question 11

The number of electrons in the valence shell of Xe in XeF6 is _ _

Accepted Answer

A)  14 
B)  8 
C)  12 
D)  10 
E)  6 
A)  14 
B)  8 
C)  12 
D)  10 
E)  6

Question 12

What method is used to produce the most hydrogen gas in the United States?

Accepted Answer

A)  reaction of metallic sodium with water 
B)  reaction of coke (carbon) with steam 
C)  reaction of zinc with acid 
D)  reaction of methane with steam 
E)  electrolysis of water 
A)  reaction of metallic sodium with water 
B)  reaction of coke (carbon) with steam 
C)  reaction of zinc with acid 
D)  reaction of methane with steam 
E)  electrolysis of water

Question 13

Which equation correctly represents the reaction between elemental fluorine and sodium iodide?

Accepted Answer

A)  F + NaI →  I + NaF 
B)  F-  + NaI → I-  + NaF 
C)  F2 + NaI →  NaF2 + I- 
D)  F + NaI →  1/2I2 + NaF 
E)  F2  + 2NaI → I2  + 2NaF 
A)  F + NaI →  I + NaF 
B)  F-  + NaI → I-  + NaF 
C)  F2 + NaI →  NaF2 + I- 
D)  F + NaI →  1/2I2 + NaF 
E)  F2  + 2NaI → I2  + 2NaF

Question 14

What anion containing Cl is used as a rocket fuel ?

Accepted Answer

The answer of What anion containing Cl is used as...

Question 15

Which of the following approaches will produce PF3 reliably?

Accepted Answer

A)  2PCl3 (l) + (excess) F2 (g)→  2PF3 (g) + 3Cl2 (g) + (excess) F2 (g) 
B)  PCl3 (l) + AsF3 (l) →  PF3 (g) + AsCl3 (l) 
C)  P (s) + (excess) F2 (g) →  PF3 (g) + (excess) F2 (g) 
D)  PF5 (g) → PF3 (g) + F2 (g) 
E)  none of these approaches will produce PF3 
A)  2PCl3 (l) + (excess) F2 (g)→  2PF3 (g) + 3Cl2 (g) + (excess) F2 (g) 
B)  PCl3 (l) + AsF3 (l) →  PF3 (g) + AsCl3 (l) 
C)  P (s) + (excess) F2 (g) →  PF3 (g) + (excess) F2 (g) 
D)  PF5 (g) → PF3 (g) + F2 (g) 
E)  none of these approaches will produce PF3

Question 16

What is the oxidation state of xenon in XeO2F2  ?

Accepted Answer

A)  +2 
B)  +6 
C)  +8 
D)  +4 
E)  0 
A)  +2 
B)  +6 
C)  +8 
D)  +4 
E)  0

Question 17

The nitride ion is a strong BrØnsted- Lowry base. Mg3N2 reacts with water to produce .

Accepted Answer

A)  NO2  
B)  NH3  
C)  N2  
D)  N2O 
E)  NO 
A)  NO2  
B)  NH3  
C)  N2  
D)  N2O 
E)  NO

Question 18

Tetraboric acid, H2B4O7, is prepared by heating boric acid, H3BO3 (a condensation reaction involving water loss). If 400 mmol H3BO3 are used, what mass (g) of H2O is formed, assuming quantitative stoichiometric conversion ?

Accepted Answer

A)  7.21 
B)  9.01 
C)  0.320 
D)  0.500 
E)  5.77 
A)  7.21 
B)  9.01 
C)  0.320 
D)  0.500 
E)  5.77

Question 19

What is the oxidation state of xenon in XeO4   ?

Accepted Answer

A)  +8 
B)  +6 
C)  +4 
D)  +2 
E)  0 
A)  +8 
B)  +6 
C)  +4 
D)  +2 
E)  0

Question 20

What are the three crystalline allotropes of carbon?

Accepted Answer

diamond, g

Exam 22: Chemistry of the Nonmetals

What effect does substitution of K2O for Na2O in making soda- lime glass have in its properties?

What are the three steps in the Ostwald process of nitric acid synthesis?

Which of the following is not an allotropic form of carbon?

What is the formula of borax ?

Diborane is .

Which compound would produce an acidic aqueous solution?

Which elemental halogen(s) can be used to prepare I2 from NaI?

Which of the following would produce an acidic solution?

H2 is reacted with to produce methanol.

The heavier noble gases are more reactive than the lighter ones because

The number of electrons in the valence shell of Xe in XeF6 is _ _

What method is used to produce the most hydrogen gas in the United States?

Which equation correctly represents the reaction between elemental fluorine and sodium iodide?

What anion containing Cl is used as a rocket fuel ?

Which of the following approaches will produce PF3 reliably?

What is the oxidation state of xenon in XeO2F2 ?

The nitride ion is a strong BrØnsted- Lowry base. Mg3N2 reacts with water to produce .

Tetraboric acid, H2B4O7, is prepared by heating boric acid, H3BO3 (a condensation reaction involving water loss). If 400 mmol H3BO3 are used, what mass (g) of H2O is formed, assuming quantitative stoichiometric conversion ?

What is the oxidation state of xenon in XeO4 ?

What are the three crystalline allotropes of carbon?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

What effect does substitution of K₂O for Na₂O in making soda- lime glass have in its properties?

Which elemental halogen(s) can be used to prepare I₂from NaI?

H₂is reacted with to produce methanol.

The number of electrons in the valence shell of Xe in XeF₆is _ _

Which of the following approaches will produce PF₃reliably?

What is the oxidation state of xenon in XeO₂F₂?

The nitride ion is a strong BrØnsted- Lowry base. Mg₃N₂reacts with water to produce .

Tetraboric acid, H₂B₄O₇, is prepared by heating boric acid, H₃BO₃(a condensation reaction involving water loss). If 400 mmol H₃BO₃are used, what mass (g) of H₂O is formed, assuming quantitative stoichiometric conversion ?

What is the oxidation state of xenon in XeO₄?