Question 1

Which species has 16 protons?

Accepted Answer

A) "31P" 
B) "34S2-" 
C) "36Cl" 
D) "80Br- " 
E) "16O" 
A) "31P" 
B) "34S2-" 
C) "36Cl" 
D) "80Br- " 
E) "16O"

Question 2

The correct name for HBrO is ________.

Accepted Answer

A) hydrobromic acid 
B) perbromic acid 
C) bromic acid 
D) bromous acid 
E) hypobromous acid 
A) hydrobromic acid 
B) perbromic acid 
C) bromic acid 
D) bromous acid 
E) hypobromous acid

Question 3

Which one of the following is most likely to gain electrons when forming an ion?

Accepted Answer

A) Mn 
B) Zn 
C) F 
D) Li 
E) Al 
A) Mn 
B) Zn 
C) F 
D) Li 
E) Al

Question 4

Which one of the following compounds is copper(I)chloride?

Accepted Answer

A) CuCl 
B) CuCl2 
C) Cu2Cl 
D) Cu2Cl3 
E) Cu3Cl2 
A) CuCl 
B) CuCl2 
C) Cu2Cl 
D) Cu2Cl3 
E) Cu3Cl2

Question 5

Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties?

Accepted Answer

A) O, S 
B) C, N 
C) K, Ca 
D) H, He 
E) Si, P 
A) O, S 
B) C, N 
C) K, Ca 
D) H, He 
E) Si, P

Question 6

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 7

The correct name of the compound Na3N is ________.

Accepted Answer

A) sodium nitride 
B) sodium azide 
C) sodium trinitride 
D) sodium(III)nitride 
E) trisodium nitride 
A) sodium nitride 
B) sodium azide 
C) sodium trinitride 
D) sodium(III)nitride 
E) trisodium nitride

Question 8

Which atom has the smallest number of neutrons?

Accepted Answer

A) carbon-14 
B) nitrogen-14 
C) oxygen-16 
D) fluorine-19 
E) neon-20 
A) carbon-14 
B) nitrogen-14 
C) oxygen-16 
D) fluorine-19 
E) neon-20

Question 9

The correct name for Ni(CN)2 is ________.

Accepted Answer

A) nickel (I)cyanide 
B) nickel cyanate 
C) nickel carbonate 
D) nickel (II)cyanide 
E) nickel (I)nitride 
A) nickel (I)cyanide 
B) nickel cyanate 
C) nickel carbonate 
D) nickel (II)cyanide 
E) nickel (I)nitride

Question 10

Which one of the following species has as many electrons as it has neutrons?

Accepted Answer

A) "1H" 
B) "40Ca2+" 
C) "14C" 
D) "19F-" 
E) "14C2+" 
A) "1H" 
B) "40Ca2+" 
C) "14C" 
D) "19F-" 
E) "14C2+"

Question 11

The atomic number of an atom of 80Br is ________.

Accepted Answer

A) 115 
B) 35 
C) 45 
D) 73 
E) 80 
A) 115 
B) 35 
C) 45 
D) 73 
E) 80

Question 12

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 13

What is the correct formula for ammonium sulfide?

Accepted Answer

A) NH4SO3 
B) (NH4)2SO4 
C) (NH4)2S 
D) NH3S 
E) N2S3 
A) NH4SO3 
B) (NH4)2SO4 
C) (NH4)2S 
D) NH3S 
E) N2S3

Question 14

If a iron atom loses 2 electrons to make an ion, what is the charge on that ion?

Accepted Answer

A) 2+ 
B) 1+ 
C) 3+ 
D) 2- 
E) 1- 
A) 2+ 
B) 1+ 
C) 3+ 
D) 2- 
E) 1-

Question 15

In the symbol below, X = ________.   X

Accepted Answer

A) N 
B) C 
C) Al 
D) K 
E) not enough information to determine 
A) N 
B) C 
C) Al 
D) K 
E) not enough information to determine

Question 16

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 17

How many total electrons are in the Li+ ion?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 7 
E) 8 
A) 2 
B) 3 
C) 4 
D) 7 
E) 8

Question 18

What is the formula for perchloric acid?

Accepted Answer

A) HClO 
B) HClO3 
C) HClO4 
D) HClO2 
E) HCl 
A) HClO 
B) HClO3 
C) HClO4 
D) HClO2 
E) HCl

Question 19

In the periodic table, the elements touching the steplike line are known as ________.

Accepted Answer

A) transition elements 
B) noble gases 
C) metalloids 
D) nonmetals 
E) metals 
A) transition elements 
B) noble gases 
C) metalloids 
D) nonmetals 
E) metals

Question 20

Which one of the following is the formula of hydrochloric acid?

Accepted Answer

A) HClO3 
B) HClO4 
C) HClO 
D) HCl 
E) HClO2 
A) HClO3 
B) HClO4 
C) HClO 
D) HCl 
E) HClO2

Exam 2: Atoms, Molecules, and Ions

Which species has 16 protons?

The correct name for HBrO is ________.

Which one of the following is most likely to gain electrons when forming an ion?

Which one of the following compounds is copper(I)chloride?

Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties?

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

The correct name of the compound Na3N is ________.

Which atom has the smallest number of neutrons?

The correct name for Ni(CN)2 is ________.

Which one of the following species has as many electrons as it has neutrons?

The atomic number of an atom of 80Br is ________.

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

What is the correct formula for ammonium sulfide?

If a iron atom loses 2 electrons to make an ion, what is the charge on that ion?

In the symbol below, X = ________. X

Cathode rays are ________.

How many total electrons are in the Li+ ion?

What is the formula for perchloric acid?

In the periodic table, the elements touching the steplike line are known as ________.

Which one of the following is the formula of hydrochloric acid?

Introduction: Matter and Measurement

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

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 of the compound Na₃N is ________.

The correct name for Ni(CN)₂ is ________.

The atomic number of an atom of ⁸⁰_{Br is ________.}

How many total electrons are in the Li⁺ ion?