Question 1

Which pair of atoms constitutes a pair of isotopes of the same element?

Accepted Answer

A)    X   X 
B)    X   X 
C)    X   X 
D)    X   X 
E)    X   X 
A)    X   X 
B)    X   X 
C)    X   X 
D)    X   X 
E)    X   X

Question 2

The correct name for Mg(ClO3)2 is ________.

Accepted Answer

A) magnesium chlorate 
B) manganese chlorate 
C) magnesium chloroxide 
D) magnesium perchlorate 
E) manganese perchlorate 
A) magnesium chlorate 
B) manganese chlorate 
C) magnesium chloroxide 
D) magnesium perchlorate 
E) manganese perchlorate

Question 3

Calcium forms an ion with a charge of ________.

Accepted Answer

A) 1- 
B) 2- 
C) 1+ 
D) 2+ 
E) 0 
A) 1- 
B) 2- 
C) 1+ 
D) 2+ 
E) 0

Question 4

Cathode rays are ________.

Accepted Answer

A) neutrons 
B) X-rays 
C) electrons 
D) protons 
E) atoms 
A) neutrons 
B) X-rays 
C) electrons 
D) protons 
E) atoms

Question 5

Which of the following species is an isotope of 79Br?

Accepted Answer

A) (40Ar+) 
B) (34S2-) 
C) (79Br-) 
D) (80Br) 
E) (79Se) 
A) (40Ar+) 
B) (34S2-) 
C) (79Br-) 
D) (80Br) 
E) (79Se)

Question 6

The element ________ is the most similar to helium in chemical and physical properties.

Accepted Answer

A) O 
B) Mg 
C) Be 
D) Ar 
E) Sr 
A) O 
B) Mg 
C) Be 
D) Ar 
E) Sr

Question 7

The atomic number indicates ________.

Accepted Answer

A) the number of neutrons in a nucleus 
B) the total number of neutrons and protons in a nucleus 
C) the number of protons or electrons in a neutral atom 
D) the number of atoms in 1 g of an element 
E) the number of different isotopes of an element 
A) the number of neutrons in a nucleus 
B) the total number of neutrons and protons in a nucleus 
C) the number of protons or electrons in a neutral atom 
D) the number of atoms in 1 g of an element 
E) the number of different isotopes of an element

Question 8

The correct name for HClO2 is ________.

Accepted Answer

A) perchloric acid 
B) chloric acid 
C) hypochlorous acid 
D) hypychloric acid 
E) chlorous acid 
A) perchloric acid 
B) chloric acid 
C) hypochlorous acid 
D) hypychloric acid 
E) chlorous acid

Question 9

Which one of the following compounds is chromium(III)oxide?

Accepted Answer

A) Cr2O3 
B) CrO3 
C) Cr3O2 
D) Cr3O 
E) Cr2O4 
A) Cr2O3 
B) CrO3 
C) Cr3O2 
D) Cr3O 
E) Cr2O4

Question 10

In the absence of magnetic or electric fields,cathode rays ________.

Accepted Answer

A) do not exist 
B) travel in straight lines 
C) cannot be detected 
D) become positively charged 
E) bend toward a light source 
A) do not exist 
B) travel in straight lines 
C) cannot be detected 
D) become positively charged 
E) bend toward a light source

Question 11

The name of the ionic compound NH4CN is ________.

Accepted Answer

A) nitrogen hydrogen cyanate 
B) ammonium carbonitride 
C) ammonium cyanide 
D) ammonium hydrogen cyanate 
E) cyanonitride 
A) nitrogen hydrogen cyanate 
B) ammonium carbonitride 
C) ammonium cyanide 
D) ammonium hydrogen cyanate 
E) cyanonitride

Question 12

Of the choices below,which one is not an ionic compound?

Accepted Answer

A) PCl5 
B) MoCl6 
C) RbCl 
D) PbCl2 
E) NaCl 
A) PCl5 
B) MoCl6 
C) RbCl 
D) PbCl2 
E) NaCl

Question 13

Which isotope has 45 neutrons?

Accepted Answer

A)    Sc 
B)    Br 
C)    Se 
D)    Cl 
E)    Rh 
A)    Sc 
B)    Br 
C)    Se 
D)    Cl 
E)    Rh

Question 14

How many electrons does the Al3+ ion possess?

Accepted Answer

A) 16 
B) 10 
C) 6 
D) 0 
E) 13 
A) 16 
B) 10 
C) 6 
D) 0 
E) 13

Question 15

Of the following,________ contains the greatest number of electrons.

Accepted Answer

A) P3+ 
B) P 
C) P2- 
D) P3- 
E) P2+ 
A) P3+ 
B) P 
C) P2- 
D) P3- 
E) P2+

Question 16

The correct name for HIO2 is ________.

Accepted Answer

A) hypoiodic acid 
B) hydriodic acid 
C) periodous acid 
D) iodous acid 
E) periodic acid 
A) hypoiodic acid 
B) hydriodic acid 
C) periodous acid 
D) iodous acid 
E) periodic acid

Question 17

Which of the following compounds would you expect to be ionic?

Accepted Answer

A) H2O 
B) CO2 
C) SrCl2 
D) SO2 
E) H2S 
A) H2O 
B) CO2 
C) SrCl2 
D) SO2 
E) H2S

Question 18

Vertical columns of the periodic table are known as ________.

Accepted Answer

A) metals 
B) periods 
C) nonmetals 
D) groups 
E) metalloids 
A) metals 
B) periods 
C) nonmetals 
D) groups 
E) metalloids

Question 19

Iron and chlorine form an ionic compound whose formula is FeCl3.The name of this compound is ________.

Accepted Answer

A) iron chlorine 
B) iron (III)chloride 
C) moniron trichloride 
D) iron (III)trichloride 
E) ferric trichloride 
A) iron chlorine 
B) iron (III)chloride 
C) moniron trichloride 
D) iron (III)trichloride 
E) ferric trichloride

Question 20

Predict the empirical formula of the ionic compound that forms from magnesium and oxygen.

Accepted Answer

A) Mg2O 
B) MgO 
C) MgO2 
D) Mg2O2 
E) Mg3O2 
A) Mg2O 
B) MgO 
C) MgO2 
D) Mg2O2 
E) Mg3O2

Exam 2: Atoms, molecules, and Ions

Which pair of atoms constitutes a pair of isotopes of the same element?

The correct name for Mg(ClO3)2 is ________.

Calcium forms an ion with a charge of ________.

Cathode rays are ________.

Which of the following species is an isotope of 79Br?

The element ________ is the most similar to helium in chemical and physical properties.

The atomic number indicates ________.

The correct name for HClO2 is ________.

Which one of the following compounds is chromium(III)oxide?

In the absence of magnetic or electric fields,cathode rays ________.

The name of the ionic compound NH4CN is ________.

Of the choices below,which one is not an ionic compound?

Which isotope has 45 neutrons?

How many electrons does the Al3+ ion possess?

Of the following,________ contains the greatest number of electrons.

The correct name for HIO2 is ________.

Which of the following compounds would you expect to be ionic?

Vertical columns of the periodic table are known as ________.

Iron and chlorine form an ionic compound whose formula is FeCl3.The name of this compound is ________.

Predict the empirical formula of the ionic compound that forms from magnesium and oxygen.

Introduction: Matter, energy, and Measurement

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The correct name for Mg(ClO₃)₂ is ________.

Which of the following species is an isotope of ⁷⁹Br?

The correct name for HClO₂ is ________.

The name of the ionic compound NH₄CN is ________.

How many electrons does the Al³⁺ ion possess?

The correct name for HIO₂is ________.

Iron and chlorine form an ionic compound whose formula is FeCl₃.The name of this compound is ________.