Question 1

Which of these elements is most likely to be a good conductor of electricity?

Accepted Answer

A)  N 
B)  S 
C)  He 
D)  Cl 
E)  Fe 
A)  N 
B)  S 
C)  He 
D)  Cl 
E)  Fe

Question 2

What is the formula of iodous acid?

Accepted Answer

A)  HI 
B)  HIO3 
C)  HIO 
D)  HIO4 
E)  HIO2 
A)  HI 
B)  HIO3 
C)  HIO 
D)  HIO4 
E)  HIO2

Question 3

Who discovered the neutron, the subatomic particle having a neutral charge?

Accepted Answer

A)  Millikan 
B)  Dalton 
C)  Chadwick 
D)  Rutherford 
E)  Thomson 
A)  Millikan 
B)  Dalton 
C)  Chadwick 
D)  Rutherford 
E)  Thomson

Question 4

________ have properties that are intermediate between those of metals and nonmetals.

Accepted Answer

The answer of ________ have properties that are intermediate between...

Question 5

What is the chemical name of FeSO3?

Accepted Answer

A)  Iron(II) sulfite 
B)  Iron(III) sulfate 
C)  Iron sulfate 
D)  Iron sulfur trioxide 
E)  None of the above names is correct. 
A)  Iron(II) sulfite 
B)  Iron(III) sulfate 
C)  Iron sulfate 
D)  Iron sulfur trioxide 
E)  None of the above names is correct.

Question 6

Which of these materials are typically poor conductors of heat and electricity?

Accepted Answer

A)  Metals 
B)  Metalloids 
C)  Nonmetals 
D)  Alkaline earth metals 
E)  Alkali metals 
A)  Metals 
B)  Metalloids 
C)  Nonmetals 
D)  Alkaline earth metals 
E)  Alkali metals

Question 7

An anion is defined as

Accepted Answer

A)  an atom or group of atoms with a net negative charge. 
B)  a stable atom. 
C)  a group of stable atoms. 
D)  an atom or group of atoms with a net positive charge. 
E)  neutral. 
A)  an atom or group of atoms with a net negative charge. 
B)  a stable atom. 
C)  a group of stable atoms. 
D)  an atom or group of atoms with a net positive charge. 
E)  neutral.

Question 8

Almost all the mass of an atom is concentrated in the nucleus.

Accepted Answer

A) True 
 B)False

Question 9

C(graphite) and C(diamond) are examples of

Accepted Answer

A)  isotopes of carbon. 
B)  allotropes of carbon. 
C)  the law of definite proportions. 
D)  different carbon ions. 
A)  isotopes of carbon. 
B)  allotropes of carbon. 
C)  the law of definite proportions. 
D)  different carbon ions.

Question 10

When J. J. Thomson discovered the electron, what physical property of the electron did he measure?

Accepted Answer

A)  its charge, e 
B)  its charge-to-mass ratio, e/m 
C)  its temperature, T 
D)  its mass, m 
E)  its atomic number, Z 
A)  its charge, e 
B)  its charge-to-mass ratio, e/m 
C)  its temperature, T 
D)  its mass, m 
E)  its atomic number, Z

Question 11

The 80Br- ion has

Accepted Answer

A)  45 protons, 35 neutrons, 45 electrons. 
B)  35 protons, 45 neutrons, 34 electrons. 
C)  35 protons, 45 neutrons, 36 electrons. 
D)  45 protons, 35 neutrons, 46 electrons. 
E)  35 protons, 45 neutrons, 46 electrons. 
A)  45 protons, 35 neutrons, 45 electrons. 
B)  35 protons, 45 neutrons, 34 electrons. 
C)  35 protons, 45 neutrons, 36 electrons. 
D)  45 protons, 35 neutrons, 46 electrons. 
E)  35 protons, 45 neutrons, 46 electrons.

Question 12

The elements in Group 8A are called the ________.

Accepted Answer

The answer of The elements in Group 8A are called...

Question 13

Which one of the following formulas of ionic compounds is the least likely to be correct?

Accepted Answer

A)  NH4Cl 
B)  Ba(OH)2 
C)  Na2SO4 
D)  Ca2NO3 
E)  Cu(CN)2 
A)  NH4Cl 
B)  Ba(OH)2 
C)  Na2SO4 
D)  Ca2NO3 
E)  Cu(CN)2

Question 14

Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.

Accepted Answer

A)  20 protons,   
B)  20 protons,   
C)  20 protons,   
D)  40 protons,   
E)  40 protons,   
A)  20 protons,   
B)  20 protons,   
C)  20 protons,   
D)  40 protons,   
E)  40 protons,

Question 15

Which of the following is a type of radioactive radiation that has no charge and is unaffected by external electric or magnetic fields?

Accepted Answer

A)  α rays 
B)  β rays 
C)  γ rays 
D)  δ rays 
E)  ε rays 
A)  α rays 
B)  β rays 
C)  γ rays 
D)  δ rays 
E)  ε rays

Question 16

Determine the average atomic mass of boron. The natural abundance of 10B (weighing 10.0129 amu) is 19.9% and the natural abundance of 11B (weighing 11.0093 amu) is 80.1%. Show all your work.

Accepted Answer

(10.0129 amu)(0.199)

Question 17

What is the name given for the elements in Group 7A in the periodic table?

Accepted Answer

The answer of What is the name given for the...

Question 18

The elements in Group 2A are known by what name?

Accepted Answer

A)  Transition metals 
B)  Halogens 
C)  Alkali metals 
D)  Alkaline earth metals 
E)  Noble gases 
A)  Transition metals 
B)  Halogens 
C)  Alkali metals 
D)  Alkaline earth metals 
E)  Noble gases

Question 19

The elements in Group 8A are called the ________.

Accepted Answer

The answer of The elements in Group 8A are called...

Question 20

The chemical name for ClO3- is "chlorate ion". What is the common name for HClO3?

Accepted Answer

A)  hydrochloric acid 
B)  chloroform 
C)  hydrogen trioxychloride 
D)  chlorous acid 
E)  chloric acid 
A)  hydrochloric acid 
B)  chloroform 
C)  hydrogen trioxychloride 
D)  chlorous acid 
E)  chloric acid

Exam 2: Atoms, Molecules, and Ions

Which of these elements is most likely to be a good conductor of electricity?

What is the formula of iodous acid?

Who discovered the neutron, the subatomic particle having a neutral charge?

________ have properties that are intermediate between those of metals and nonmetals.

What is the chemical name of FeSO3?

Which of these materials are typically poor conductors of heat and electricity?

An anion is defined as

Almost all the mass of an atom is concentrated in the nucleus.

C(graphite) and C(diamond) are examples of

When J. J. Thomson discovered the electron, what physical property of the electron did he measure?

The 80Br- ion has

The elements in Group 8A are called the ________.

Which one of the following formulas of ionic compounds is the least likely to be correct?

Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.

Which of the following is a type of radioactive radiation that has no charge and is unaffected by external electric or magnetic fields?

Determine the average atomic mass of boron. The natural abundance of 10B (weighing 10.0129 amu) is 19.9% and the natural abundance of 11B (weighing 11.0093 amu) is 80.1%. Show all your work.

What is the name given for the elements in Group 7A in the periodic table?

The elements in Group 2A are known by what name?

The elements in Group 8A are called the ________.

The chemical name for ClO3- is "chlorate ion". What is the common name for HClO3?

Chemistry: the Central Science

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

What is the chemical name of FeSO₃?

The ⁸⁰Br^- ion has

Determine the average atomic mass of boron. The natural abundance of ¹⁰B (weighing 10.0129 amu) is 19.9% and the natural abundance of ¹¹B (weighing 11.0093 amu) is 80.1%. Show all your work.

The chemical name for ClO₃^- is "chlorate ion". What is the common name for HClO₃?