Question 1

What is the law of conservation of mass

Accepted Answer

A)  Gravity and mass have the same meaning. 
B)  Matter can be neither created nor destroyed. 
C)  Mass can never be changed to energy. 
D)  Mass and volume will always be equal. 
E)  Mass can be destroyed but only when it is conserved. 
A)  Gravity and mass have the same meaning. 
B)  Matter can be neither created nor destroyed. 
C)  Mass can never be changed to energy. 
D)  Mass and volume will always be equal. 
E)  Mass can be destroyed but only when it is conserved.

Question 2

What is the formula for the ionic compound containing calcium ions and nitrate ions

Accepted Answer

A)  Ca3N2 
B)  Ca(NO3)2 
C)  Ca2NO3 
D)  Ca2NO2 
E)  CaNO3 
A)  Ca3N2 
B)  Ca(NO3)2 
C)  Ca2NO3 
D)  Ca2NO2 
E)  CaNO3

Question 3

What is the formula for the ionic compound containing calcium ions and oxide ions

Accepted Answer

A)  CaO 
B)  Ca2O 
C)  CaO2 
D)  Ca3O 
E)  CaO3 
A)  CaO 
B)  Ca2O 
C)  CaO2 
D)  Ca3O 
E)  CaO3

Question 4

Which of the following 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 5

What is the empirical formula for C10H22O2

Accepted Answer

A)  C10H22O2 
B)  C5H11O 
C)  C20H44O4 
D)  C2H11O 
E)  C5H11O2 
A)  C10H22O2 
B)  C5H11O 
C)  C20H44O4 
D)  C2H11O 
E)  C5H11O2

Question 6

Of the following which is NOT a contribution of Marie Curie

Accepted Answer

A)  Discovered two new elements 
B)  Her scientific studies were awarded a Nobel Prize in chemistry. 
C)  She discovered the Law of Conservation of Mass. 
D)  She suggested the term "radioactivity." 
E)  Her scientific studies were awarded a Nobel Prize in physics. 
A)  Discovered two new elements 
B)  Her scientific studies were awarded a Nobel Prize in chemistry. 
C)  She discovered the Law of Conservation of Mass. 
D)  She suggested the term "radioactivity." 
E)  Her scientific studies were awarded a Nobel Prize in physics.

Question 7

Name the following compound: Al(NO2)2.

Accepted Answer

A)  Aluminum nitrate 
B)  Aluminum dinitrate 
C)  Aluminum dinitrite 
D)  Aluminum nitrite 
E)  aluminum dinitrogen oxide 
A)  Aluminum nitrate 
B)  Aluminum dinitrate 
C)  Aluminum dinitrite 
D)  Aluminum nitrite 
E)  aluminum dinitrogen oxide

Question 8

What type of compound is NH4NO3

Accepted Answer

A)  Ionic 
B)  Molecular 
C)  Acid 
D)  Base 
E)  Hydrate 
A)  Ionic 
B)  Molecular 
C)  Acid 
D)  Base 
E)  Hydrate

Question 9

What are the two different ions present in the compound  FeCl3

Accepted Answer

The answer of What are the two different ions present...

Question 10

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

Accepted Answer

A)  electrons 
B)  protons 
C)  nucleus 
D)  neurons 
E)  alpha particles 
A)  electrons 
B)  protons 
C)  nucleus 
D)  neurons 
E)  alpha particles

Question 11

Which of the following is an example of an empirical formula

Accepted Answer

A)  C9H12 
B)  C9H18Cl2 
C)  C6H6 
D)  N2O4 
E)  C2H2O2 
A)  C9H12 
B)  C9H18Cl2 
C)  C6H6 
D)  N2O4 
E)  C2H2O2

Question 12

An atom of the isotope 137Ba consists of how many protons (p), neutrons (n), and electrons (e)

Accepted Answer

A)  56 p, 137 n, 56 e 
B)  56 p, 81 n, 56 e 
C)  137 p, 81 n, 56 e 
D)  56 p, 56 n, 56 e 
E)  81 p, 56 n, 81 e 
A)  56 p, 137 n, 56 e 
B)  56 p, 81 n, 56 e 
C)  137 p, 81 n, 56 e 
D)  56 p, 56 n, 56 e 
E)  81 p, 56 n, 81 e

Question 13

Give the number of protons (p), neutrons (n), and electrons E) in one atom of 238U.

Accepted Answer

A)  146 p, 92 n, 92 e 
B)  92 p, 92 n, 92 e 
C)  92 p, 146 n, 92e 
D)  146 p, 28 n, 146 e 
E)  238 p, 146 n, 238 e 
A)  146 p, 92 n, 92 e 
B)  92 p, 92 n, 92 e 
C)  92 p, 146 n, 92e 
D)  146 p, 28 n, 146 e 
E)  238 p, 146 n, 238 e

Question 14

How many electrons, protons, and neutrons are in a neutral atom of the following isotope of gadolinium 
${ }_{64}^{160} \mathrm{Gd}$

Accepted Answer

A)  64 electrons, 64 protons, and 160 neutrons 
B)  64 electrons, 64 protons, and 96 neutrons 
C)  96 electrons, 96 protons, and 64 neutrons 
D)  64 electrons, 96 protons, and 96 neutrons 
E)  None of the above are correct 
A)  64 electrons, 64 protons, and 160 neutrons 
B)  64 electrons, 64 protons, and 96 neutrons 
C)  96 electrons, 96 protons, and 64 neutrons 
D)  64 electrons, 96 protons, and 96 neutrons 
E)  None of the above are correct

Question 15

The number of neutrons in all atoms of an element is the same.

Accepted Answer

A) True 
 B)False

Question 16

What is the ion ClO4- named

Accepted Answer

A)  chloride ion 
B)  chlorite ion 
C)  hypochlorite ion 
D)  perchlorite ion 
E)  perchlorate ion 
A)  chloride ion 
B)  chlorite ion 
C)  hypochlorite ion 
D)  perchlorite ion 
E)  perchlorate ion

Question 17

What are the ions present in the compound CH4

Accepted Answer

A)  C4+, H+ 
B)  C4-, H+ 
C)  C-, H+ 
D)  C4- H4+ 
E)  no ions present 
A)  C4+, H+ 
B)  C4-, H+ 
C)  C-, H+ 
D)  C4- H4+ 
E)  no ions present

Question 18

Which of the following elements is chemically similar to potassium

Accepted Answer

A)  calcium 
B)  arsenic 
C)  phosphorus 
D)  cerium 
E)  cesium 
A)  calcium 
B)  arsenic 
C)  phosphorus 
D)  cerium 
E)  cesium

Question 19

Give the formula of ammonium sulfate.

Accepted Answer

A)  (NH4)2SO3 
B)  NH4 SO4 
C)  (NH4)3SO4 
D)  (NH4)2SO4 
E)  (NH4)2(SO4)2 
A)  (NH4)2SO3 
B)  NH4 SO4 
C)  (NH4)3SO4 
D)  (NH4)2SO4 
E)  (NH4)2(SO4)2

Question 20

An oxide ion, O2-, has:

Accepted Answer

A)  8 protons and 10 electrons 
B)  10 protons and 8 electrons 
C)  8 protons and 9 electrons 
D)  8 protons and 7 electrons 
E)  10 protons and 7 electrons 
A)  8 protons and 10 electrons 
B)  10 protons and 8 electrons 
C)  8 protons and 9 electrons 
D)  8 protons and 7 electrons 
E)  10 protons and 7 electrons

Exam 2: Atoms Molecules and Ions

What is the law of conservation of mass

What is the formula for the ionic compound containing calcium ions and nitrate ions

What is the formula for the ionic compound containing calcium ions and oxide ions

Which of the following elements is most likely to be a good conductor of electricity

What is the empirical formula for C10H22O2

Of the following which is NOT a contribution of Marie Curie

Name the following compound: Al(NO2)2.

What type of compound is NH4NO3

What are the two different ions present in the compound FeCl3

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

Which of the following is an example of an empirical formula

An atom of the isotope 137Ba consists of how many protons (p), neutrons (n), and electrons (e)

Give the number of protons (p), neutrons (n), and electrons E) in one atom of 238U.

How many electrons, protons, and neutrons are in a neutral atom of the following isotope of gadolinium 64160Gd{ }_{64}^{160} \mathrm{Gd}64160​Gd

The number of neutrons in all atoms of an element is the same.

What is the ion ClO4- named

What are the ions present in the compound CH4

Which of the following elements is chemically similar to potassium

Give the formula of ammonium sulfate.

An oxide ion, O2-, has:

Chemistry: The Study of Change

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

Intermolecular Forces and Liquids and Solids

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

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

What is the empirical formula for C₁₀H₂₂O₂

Name the following compound: Al(NO₂)₂.

What type of compound is NH₄NO₃

What are the two different ions present in the compound FeCl₃

An atom of the isotope ¹³⁷Ba consists of how many protons (p), neutrons (n), and electrons (e)

Give the number of protons (p), neutrons (n), and electrons E) in one atom of ²³⁸U.

How many electrons, protons, and neutrons are in a neutral atom of the following isotope of gadolinium ${ }_{64}^{160} \mathrm{Gd}$

What is the ion ClO₄^- named

What are the ions present in the compound CH₄

An oxide ion, O^2-, has: