Question 1

A solution of table salt, NaCl, in water is

Accepted Answer

A) acidic. 
B) basic. 
C) neutral. 
D) Any of these choices could be correct, depending on the concentration. 
A) acidic. 
B) basic. 
C) neutral. 
D) Any of these choices could be correct, depending on the concentration.

Question 2

Pure water is not

Accepted Answer

A) polar. 
B) a good solvent. 
C) a compound. 
D) saturated. 
A) polar. 
B) a good solvent. 
C) a compound. 
D) saturated.

Question 3

Which of the following would you expect to be a strong electrolyte in solution?

Accepted Answer

A) NaCl 
B) AgCl 
C) acetic acid 
D) soap 
A) NaCl 
B) AgCl 
C) acetic acid 
D) soap

Question 4

Reverse osmosis

Accepted Answer

A) is used to replenish the oxygen content of bodies of water. 
B) causes dead zones off the mouths of rivers. 
C) is used to soften hard water. 
D) is used to desalinate salt water. 
A) is used to replenish the oxygen content of bodies of water. 
B) causes dead zones off the mouths of rivers. 
C) is used to soften hard water. 
D) is used to desalinate salt water.

Question 5

Acids do not

Accepted Answer

A) neutralize bases. 
B) taste sour. 
C) combine with active metals to give off H2. 
D) liberate OH- ions when dissolved in water. 
A) neutralize bases. 
B) taste sour. 
C) combine with active metals to give off H2. 
D) liberate OH- ions when dissolved in water.

Question 6

Most solids are

Accepted Answer

A) amorphous. 
B) crystalline. 
C) covalent. 
D) polar. 
A) amorphous. 
B) crystalline. 
C) covalent. 
D) polar.

Question 7

The extremely strong material called graphene

Accepted Answer

A) consists of molecules in the form of cages made up of 60 carbon atoms. 
B) consists of carbon nanotubes. 
C) is a one-atom-thick sheet of carbon atoms. 
D) is a thick sheet of carbon atoms. 
A) consists of molecules in the form of cages made up of 60 carbon atoms. 
B) consists of carbon nanotubes. 
C) is a one-atom-thick sheet of carbon atoms. 
D) is a thick sheet of carbon atoms.

Question 8

The individual particles in an ionic solid are held together as a result of

Accepted Answer

A) electron transfer between adjacent molecules. 
B) electron sharing between adjacent atoms. 
C) the attraction of polar molecules. 
D) a sea of freely moving electrons. 
A) electron transfer between adjacent molecules. 
B) electron sharing between adjacent atoms. 
C) the attraction of polar molecules. 
D) a sea of freely moving electrons.

Question 9

All forms of solid carbon

Accepted Answer

A) are amorphous. 
B) are crystalline. 
C) are held together only by covalent bonds. 
D) conduct electricity well. 
A) are amorphous. 
B) are crystalline. 
C) are held together only by covalent bonds. 
D) conduct electricity well.

Question 10

An example of a molecular solid is

Accepted Answer

A) ice. 
B) diamond. 
C) table salt. 
D) tin. 
A) ice. 
B) diamond. 
C) table salt. 
D) tin.

Question 11

The symbol of the hydroxide ion is

Accepted Answer

A) H3O-. 
B) H3O+. 
C) OH-. 
D) OH+. 
A) H3O-. 
B) H3O+. 
C) OH-. 
D) OH+.

Question 12

A saturated solution contains

Accepted Answer

A) only ions. 
B) only nonpolar molecules. 
C) the maximum concentration of solute. 
D) the maximum concentration of solvent. 
A) only ions. 
B) only nonpolar molecules. 
C) the maximum concentration of solute. 
D) the maximum concentration of solvent.

Question 13

An example of a covalent solid is

Accepted Answer

A) ice. 
B) diamond. 
C) table salt. 
D) tin. 
A) ice. 
B) diamond. 
C) table salt. 
D) tin.

Question 14

An example of a weak acid is

Accepted Answer

A) nitric acid. 
B) acetic acid. 
C) sulfuric acid. 
D) hydrochloric acid. 
A) nitric acid. 
B) acetic acid. 
C) sulfuric acid. 
D) hydrochloric acid.

Question 15

The individual particles in a metal are held together as a result of

Accepted Answer

A) electron transfer between adjacent atoms. 
B) electron sharing between adjacent atoms. 
C) the attraction of polar molecules. 
D) a sea of freely moving electrons. 
A) electron transfer between adjacent atoms. 
B) electron sharing between adjacent atoms. 
C) the attraction of polar molecules. 
D) a sea of freely moving electrons.

Question 16

Glass is

Accepted Answer

A) amorphous. 
B) crystalline. 
C) covalent. 
D) polar. 
A) amorphous. 
B) crystalline. 
C) covalent. 
D) polar.

Question 17

A solution of ammonia, NH3, in water is

Accepted Answer

A) acidic. 
B) basic. 
C) neutral. 
D) Any of these choices could be correct, depending on the concentration. 
A) acidic. 
B) basic. 
C) neutral. 
D) Any of these choices could be correct, depending on the concentration.

Question 18

The fundamental reaction of neutralization is

Accepted Answer

A) H+ + H2O $\rarr$H3O+. 
B) H2O $\rarr$ H+ + OH-. 
C) H+ + OH- $\rarr$ H2O. 
D) H2O + H2O $\rarr$H3O+ + OH-. 
A) H+ + H2O $\rarr$H3O+. 
B) H2O $\rarr$ H+ + OH-. 
C) H+ + OH- $\rarr$ H2O. 
D) H2O + H2O $\rarr$H3O+ + OH-.

Question 19

Which solids are the best heat conductors?

Accepted Answer

A) covalent 
B) ionic 
C) molecular 
D) metallic 
A) covalent 
B) ionic 
C) molecular 
D) metallic

Question 20

With increasing temperature, the solubility of a solid in a liquid

Accepted Answer

A) decreases. 
B) increases. 
C) remains the same. 
D) Any of these choices could be correct, depending on the particular solid and liquid. 
A) decreases. 
B) increases. 
C) remains the same. 
D) Any of these choices could be correct, depending on the particular solid and liquid.

A solution of table salt, NaCl, in water is

Pure water is not

Which of the following would you expect to be a strong electrolyte in solution?

Reverse osmosis

Acids do not

Most solids are

The extremely strong material called graphene

The individual particles in an ionic solid are held together as a result of

All forms of solid carbon

An example of a molecular solid is

The symbol of the hydroxide ion is

A saturated solution contains

An example of a covalent solid is

An example of a weak acid is

The individual particles in a metal are held together as a result of

Glass is

A solution of ammonia, NH₃, in water is

The fundamental reaction of neutralization is

Which solids are the best heat conductors?

With increasing temperature, the solubility of a solid in a liquid

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe

Filters

Exam 11: Crystals, Ions, and Solutions

A solution of table salt, NaCl, in water is

Pure water is not

Which of the following would you expect to be a strong electrolyte in solution?

Reverse osmosis

Acids do not

Most solids are

The extremely strong material called graphene

The individual particles in an ionic solid are held together as a result of

All forms of solid carbon

An example of a molecular solid is

The symbol of the hydroxide ion is

A saturated solution contains

An example of a covalent solid is

An example of a weak acid is

The individual particles in a metal are held together as a result of

Glass is

A solution of ammonia, NH3, in water is

The fundamental reaction of neutralization is

Which solids are the best heat conductors?

With increasing temperature, the solubility of a solid in a liquid

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe

Filters

A solution of ammonia, NH₃, in water is