Question 1

Which of the following cations is likely to be hydrated in compounds?

Accepted Answer

A) Rb+  
B) Li+  
C) K+  
D) Cs+  
E) NH4+ 
A) Rb+  
B) Li+  
C) K+  
D) Cs+  
E) NH4+

Question 2

A cubic close-packed structure has

Accepted Answer

A) A coordination number of 4. 
B) A coordination number of 6. 
C) The same density as a hexagonal close-packed structure. 
D) Twice the density of a hexagonal close-packed structure. 
E) A coordination number of 8. 
A) A coordination number of 4. 
B) A coordination number of 6. 
C) The same density as a hexagonal close-packed structure. 
D) Twice the density of a hexagonal close-packed structure. 
E) A coordination number of 8.

Question 3

Which answer best accounts for the Na+ ions present in the NaCl unit cell?

Accepted Answer

A) 1 center atom + 1/8 * 24 corner atoms 
B) 1 center atom + 1/2 * 6 face atoms 
C) 1 center atom + 1/8 * 8 corner atoms 
D) 1 center atom + 1/4 * 12 edge atoms 
E) 1/8 * 8 corner atoms + 1/2 * 6 face atoms 
A) 1 center atom + 1/8 * 24 corner atoms 
B) 1 center atom + 1/2 * 6 face atoms 
C) 1 center atom + 1/8 * 8 corner atoms 
D) 1 center atom + 1/4 * 12 edge atoms 
E) 1/8 * 8 corner atoms + 1/2 * 6 face atoms

Question 4

If the radius of an atom is r,what is the length of the side of the body-centered cubic unit cell?

Accepted Answer

A) 4r/3½ 
B) 2.25r 
C) r 
D) 2r 
E) 8½r 
A) 4r/3½ 
B) 2.25r 
C) r 
D) 2r 
E) 8½r

Question 5

Which of the following can form intermolecular hydrogen bonds?

Accepted Answer

A) CH3CH2CH2CH2CH3  
B) CH3CH2C(O)H 
C) CH3CH2C(O)CH3  
D) CH3CH2NH2  
E) CH3CH2OCH2CH3  
A) CH3CH2CH2CH2CH3  
B) CH3CH2C(O)H 
C) CH3CH2C(O)CH3  
D) CH3CH2NH2  
E) CH3CH2OCH2CH3

Question 6

What are the coordination numbers of Ca2+ and F- ions,respectively,in fluorite? The unit cell is shown below

Accepted Answer

A) 6 and 8 
B) 4 and 8 
C) 8 and 8 
D) 6 and 4 
E) 8 and 4 
A) 6 and 8 
B) 4 and 8 
C) 8 and 8 
D) 6 and 4 
E) 8 and 4

Question 7

Tetrabromomethane has a higher boiling point than tetrachloromethane.True or false?

Accepted Answer

A) True 
 B)False

Question 8

Which of the following statements is true?

Accepted Answer

A) A metallic conductor is a substance with a resistance that increases with increasing temperature. 
B) A superconductor is a substance that has zero resistance below a certain temperature. 
C) An insulator is a substance that does not conduct electricity below a certain temperature. 
D) A semiconductor is a substance with a resistance that increases with increasing temperature. 
E) An insulator behaves like a metallic conductor with a very high resistance. 
A) A metallic conductor is a substance with a resistance that increases with increasing temperature. 
B) A superconductor is a substance that has zero resistance below a certain temperature. 
C) An insulator is a substance that does not conduct electricity below a certain temperature. 
D) A semiconductor is a substance with a resistance that increases with increasing temperature. 
E) An insulator behaves like a metallic conductor with a very high resistance.

Question 9

Which of the following can form intermolecular hydrogen bonds?

Accepted Answer

A) NH2CH2COOH 
B) SiH4 
C) CH3COCH3 
D) H2CO 
E) CH3Cl 
A) NH2CH2COOH 
B) SiH4 
C) CH3COCH3 
D) H2CO 
E) CH3Cl

Question 10

What is the formula of the superconductor whose unit cell is shown below? (The Y and Ba atoms are in the middle of the cell.)

Accepted Answer

A) YBa2Cu3O9  
B) YBa2Cu4O5  
C) YBa2Cu2O7  
D) YBa2Cu4O7  
E) YBa2Cu3O7  
A) YBa2Cu3O9  
B) YBa2Cu4O5  
C) YBa2Cu2O7  
D) YBa2Cu4O7  
E) YBa2Cu3O7

Question 11

If the radius of an atom is r,what is the length of the side of the face-centered cubic unit cell?

Accepted Answer

A) 8½r 
B) 2.25r 
C) 2r 
D) 4r/3½ 
E) r 
A) 8½r 
B) 2.25r 
C) 2r 
D) 4r/3½ 
E) r

Question 12

Which of the following cations is likely to be hydrated in compounds?

Accepted Answer

A) Cs+  
B) NH4+ 
C) La3+  
D) Rb+  
E) K+  
A) Cs+  
B) NH4+ 
C) La3+  
D) Rb+  
E) K+

Question 13

How many octahedral holes are there in a face-centered cubic unit cell?

Accepted Answer

A) 6 
B) 13 
C) 12 
D) 4 
E) 8 
A) 6 
B) 13 
C) 12 
D) 4 
E) 8

Question 14

An amorphous solid is one in which the atoms,ions,or molecules lie in a random jumble with no order.True or false?

Accepted Answer

A) True 
 B)False

Question 15

A metal with a cubic close-packed structure is malleable because

Accepted Answer

A) Each atom has 2 tetrahedral holes. 
B) Each atom has a coordination number of 12. 
C) The unit cell has 8 sets of slip planes. 
D) The unit cell has a large percentage of empty space. 
E) Each atom has 1 octahedral hole. 
A) Each atom has 2 tetrahedral holes. 
B) Each atom has a coordination number of 12. 
C) The unit cell has 8 sets of slip planes. 
D) The unit cell has a large percentage of empty space. 
E) Each atom has 1 octahedral hole.

Question 16

Which of the following is the strongest intermolecular force between molecules?

Accepted Answer

A) Dipole-dipole (stationary) 
B) Hydrogen bonding 
C) Dipole-dipole (rotating) 
D) London 
E) Ion-dipole 
A) Dipole-dipole (stationary) 
B) Hydrogen bonding 
C) Dipole-dipole (rotating) 
D) London 
E) Ion-dipole

Question 17

What are the coordination numbers of Ti4+ and O2-,respectively,in rutile? The unit cell is shown below.

Accepted Answer

A) 4 and 3 
B) 6 and 4 
C) 3 and 6 
D) 6 and 6 
E) 6 and 3 
A) 4 and 3 
B) 6 and 4 
C) 3 and 6 
D) 6 and 6 
E) 6 and 3

Question 18

How many calcium,titanium,and oxygen ions are there in the perovskite unit cell shown below?

Accepted Answer

A) 1 Ca2+,2 Ti4+,and 3 O2- 
B) 1 Ca2+,1 Ti4+,and 6 O2- 
C) 1 Ca2+,4 Ti4+,and 6 O2- 
D) 1 Ca2+,1 Ti4+,and 3 O2- 
E) 1 Ca2+,2 Ti4+,and 6 O2- 
A) 1 Ca2+,2 Ti4+,and 3 O2- 
B) 1 Ca2+,1 Ti4+,and 6 O2- 
C) 1 Ca2+,4 Ti4+,and 6 O2- 
D) 1 Ca2+,1 Ti4+,and 3 O2- 
E) 1 Ca2+,2 Ti4+,and 6 O2-

Question 19

Estimate the density of cesium iodide from its crystal structure.The ionic radii of Cs+ and Cl- are 170 and 220 pm,respectively.

Accepted Answer

A) 7.25 g.cm-3  
B) 18.9 g.cm-3  
C) 9.44 g.cm-3  
D) 4.72 g.cm-3  
E) 3.77 g.cm-3  
A) 7.25 g.cm-3  
B) 18.9 g.cm-3  
C) 9.44 g.cm-3  
D) 4.72 g.cm-3  
E) 3.77 g.cm-3

Question 20

BN 2.I2 3.ice 4.SiO2 5.Ba 6.C 7.BeCl2 8.B

Accepted Answer

A) 2,3,7,and 1,4,6,8 
B) 1,2,3,and 6,8 
C) 1,2,4,7,and 5,6,8 
D) 1,2,4,7,and 6,8 
E) 2,4,7,and 6,8 
A) 2,3,7,and 1,4,6,8 
B) 1,2,3,and 6,8 
C) 1,2,4,7,and 5,6,8 
D) 1,2,4,7,and 6,8 
E) 2,4,7,and 6,8

Which of the following cations is likely to be hydrated in compounds?

A cubic close-packed structure has

Which answer best accounts for the Na⁺ ions present in the NaCl unit cell?

If the radius of an atom is r,what is the length of the side of the body-centered cubic unit cell?

Which of the following can form intermolecular hydrogen bonds?

What are the coordination numbers of Ca²⁺ and F^- ions,respectively,in fluorite? The unit cell is shown below

Tetrabromomethane has a higher boiling point than tetrachloromethane.True or false?

Which of the following statements is true?

Which of the following can form intermolecular hydrogen bonds?

What is the formula of the superconductor whose unit cell is shown below? (The Y and Ba atoms are in the middle of the cell.)

If the radius of an atom is r,what is the length of the side of the face-centered cubic unit cell?

Which of the following cations is likely to be hydrated in compounds?

How many octahedral holes are there in a face-centered cubic unit cell?

An amorphous solid is one in which the atoms,ions,or molecules lie in a random jumble with no order.True or false?

A metal with a cubic close-packed structure is malleable because

Which of the following is the strongest intermolecular force between molecules?

What are the coordination numbers of Ti⁴⁺ and O^2-,respectively,in rutile? The unit cell is shown below.

How many calcium,titanium,and oxygen ions are there in the perovskite unit cell shown below?

Estimate the density of cesium iodide from its crystal structure.The ionic radii of Cs⁺ and Cl^- are 170 and 220 pm,respectively.

BN 2.I₂ 3.ice 4.SiO₂ 5.Ba 6.C 7.BeCl₂ 8.B

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

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Exam 6: Liquids and Solids

Which of the following cations is likely to be hydrated in compounds?

A cubic close-packed structure has

Which answer best accounts for the Na+ ions present in the NaCl unit cell?

If the radius of an atom is r,what is the length of the side of the body-centered cubic unit cell?

Which of the following can form intermolecular hydrogen bonds?

What are the coordination numbers of Ca2+ and F- ions,respectively,in fluorite? The unit cell is shown below

Tetrabromomethane has a higher boiling point than tetrachloromethane.True or false?

Which of the following statements is true?

Which of the following can form intermolecular hydrogen bonds?

What is the formula of the superconductor whose unit cell is shown below? (The Y and Ba atoms are in the middle of the cell.)

If the radius of an atom is r,what is the length of the side of the face-centered cubic unit cell?

Which of the following cations is likely to be hydrated in compounds?

How many octahedral holes are there in a face-centered cubic unit cell?

An amorphous solid is one in which the atoms,ions,or molecules lie in a random jumble with no order.True or false?

A metal with a cubic close-packed structure is malleable because

Which of the following is the strongest intermolecular force between molecules?

What are the coordination numbers of Ti4+ and O2-,respectively,in rutile? The unit cell is shown below.

How many calcium,titanium,and oxygen ions are there in the perovskite unit cell shown below?

Estimate the density of cesium iodide from its crystal structure.The ionic radii of Cs+ and Cl- are 170 and 220 pm,respectively.

BN 2.I2 3.ice 4.SiO2 5.Ba 6.C 7.BeCl2 8.B

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

Which answer best accounts for the Na⁺ ions present in the NaCl unit cell?

What are the coordination numbers of Ca²⁺ and F^- ions,respectively,in fluorite? The unit cell is shown below

What are the coordination numbers of Ti⁴⁺ and O^2-,respectively,in rutile? The unit cell is shown below.

Estimate the density of cesium iodide from its crystal structure.The ionic radii of Cs⁺ and Cl^- are 170 and 220 pm,respectively.

BN 2.I₂ 3.ice 4.SiO₂ 5.Ba 6.C 7.BeCl₂ 8.B