Question 1

Graphite is an example of a ________ solid.

Accepted Answer

The answer of Graphite is an example of a ________...

Question 2

Which molecule(s)exhibit hydrogen bonding?

Accepted Answer

A) CH4 
B) CHCl3 
C) NF3 
D) HF 
E) All of the molecules exhibit hydrogen bonding. 
A) CH4 
B) CHCl3 
C) NF3 
D) HF 
E) All of the molecules exhibit hydrogen bonding.

Question 3

Which compound has the lowest boiling point?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 4

Sarin,a nerve gas once used as a chemical weapon,has a melting point of -56 °C and a boiling point of 158 °C. A sample of sarin at room temperature (22 °C)exists as a liquid.

Accepted Answer

A) True 
 B)False

Question 5

London dispersion forces are also referred to as van der Waals forces.

Accepted Answer

A) True 
 B)False

Question 6

Which phase change below is endothermic?

Accepted Answer

A) Deposition 
B) Melting 
C) Condensation 
D) Freezing 
A) Deposition 
B) Melting 
C) Condensation 
D) Freezing

Question 7

A sample of gas contains four gases (He,Ne,Ar,and Xe)with the following partial pressures: He (43 mm Hg),Ar (835 mm Hg),and Xe (111 mm Hg). If the total pressure in the container is 1355 mm Hg,what is the partial pressure of Ne in the sample?

Accepted Answer

A) 989 mm Hg 
B) 760. mm Hg 
C) 366 mm Hg 
D) 323 mm Hg 
A) 989 mm Hg 
B) 760. mm Hg 
C) 366 mm Hg 
D) 323 mm Hg

Question 8

When the volume of a sample of gas is doubled and the Kelvin temperature is doubled,the pressure of a sample remains constant.

Accepted Answer

A) True 
 B)False

Question 9

Which is an ionic solid?

Accepted Answer

A) KCl 
B) Cu 
C) SiO2 
D) Rubber 
E) Polyethylene 
A) KCl 
B) Cu 
C) SiO2 
D) Rubber 
E) Polyethylene

Question 10

All solids are crystalline solids.

Accepted Answer

A) True 
 B)False

Question 11

The physical change indicated below represents the ________ of ethanol (C2H5OH).
C2H5OH(g)→ C2H5OH(l)

Accepted Answer

Question 12

Which is a molecular solid?

Accepted Answer

A) MgCl2 
B) Au 
C) Glass 
D) Graphite 
E) Sucrose (C12H22O11) 
A) MgCl2 
B) Au 
C) Glass 
D) Graphite 
E) Sucrose (C12H22O11)

Question 13

A sample of gas contains four gases with the following partial pressures: He (113 mm Hg),Ne (184 mm Hg),Ar (35 mm Hg),and Xe (445 mm Hg). What is the total pressure of the sample?

Accepted Answer

A) 777 mm Hg 
B) 760. mm Hg 
C) 445 mm Hg 
D) 332 mm Hg 
A) 777 mm Hg 
B) 760. mm Hg 
C) 445 mm Hg 
D) 332 mm Hg

Question 14

The numerical value of the universal gas constant,R,depends on its units.

Accepted Answer

A) True 
 B)False

Question 15

Gas pressure is the result of particles of gas colliding with each other.

Accepted Answer

A) True 
 B)False

Question 16

If two compounds have the same molecular formula they will have the same boiling point.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following compounds has the highest boiling point?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 18

London dispersion forces are the strongest type of intermolecular forces.

Accepted Answer

A) True 
 B)False

Exam 7: Gases,liquids,and Solids

Graphite is an example of a ________ solid.

Which molecule(s)exhibit hydrogen bonding?

Which compound has the lowest boiling point?

Sarin,a nerve gas once used as a chemical weapon,has a melting point of -56 °C and a boiling point of 158 °C. A sample of sarin at room temperature (22 °C)exists as a liquid.

London dispersion forces are also referred to as van der Waals forces.

Which phase change below is endothermic?

A sample of gas contains four gases (He,Ne,Ar,and Xe)with the following partial pressures: He (43 mm Hg),Ar (835 mm Hg),and Xe (111 mm Hg). If the total pressure in the container is 1355 mm Hg,what is the partial pressure of Ne in the sample?

When the volume of a sample of gas is doubled and the Kelvin temperature is doubled,the pressure of a sample remains constant.

Which is an ionic solid?

All solids are crystalline solids.

The physical change indicated below represents the ________ of ethanol (C2H5OH). C2H5OH(g)→ C2H5OH(l)

Which is a molecular solid?

A sample of gas contains four gases with the following partial pressures: He (113 mm Hg),Ne (184 mm Hg),Ar (35 mm Hg),and Xe (445 mm Hg). What is the total pressure of the sample?

The numerical value of the universal gas constant,R,depends on its units.

Gas pressure is the result of particles of gas colliding with each other.

If two compounds have the same molecular formula they will have the same boiling point.

Which of the following compounds has the highest boiling point?

London dispersion forces are the strongest type of intermolecular forces.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

The physical change indicated below represents the ________ of ethanol (C₂H₅OH). C₂H₅OH(g)→ C₂H₅OH(l)