Question 1

A neutral atom of an isotope 200Hg contains _____.

Accepted Answer

A)  200 neutrons and 280 electrons 
B)  80 protons and 200 neutrons 
C)  200 protons and 120 electrons 
D)  200 protons, 80 neutrons, and 200 electrons 
E)  80 protons and 120 neutrons 
A)  200 neutrons and 280 electrons 
B)  80 protons and 200 neutrons 
C)  200 protons and 120 electrons 
D)  200 protons, 80 neutrons, and 200 electrons 
E)  80 protons and 120 neutrons

Question 2

The formula of acetic acid, CH3CO2H, is an example of a(n) _____.

Accepted Answer

A)  condensed formula 
B)  empirical formula 
C)  structural formula 
D)  ionic compound formula 
E)  elemental formula 
A)  condensed formula 
B)  empirical formula 
C)  structural formula 
D)  ionic compound formula 
E)  elemental formula

Question 3

What is the mass of chlorine-35 relative to carbon-12?

Accepted Answer

A)  0.657 
B)  0.522 
C)  1.52 
D)  2.92 
E)  23 
A)  0.657 
B)  0.522 
C)  1.52 
D)  2.92 
E)  23

Question 4

Two isotopes of a given element will have the same number of _____, but a different number of _____ in their nucleus.

Accepted Answer

A)  protons; electrons 
B)  electrons; protons 
C)  protons; neutrons 
D)  neutrons; protons 
E)  electrons; neutrons 
A)  protons; electrons 
B)  electrons; protons 
C)  protons; neutrons 
D)  neutrons; protons 
E)  electrons; neutrons

Question 5

What is the common name of the group that has an element with 38 protons in its nucleus?

Accepted Answer

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

Question 6

What is the mass number of an atom of argon with 22 neutrons?

Accepted Answer

A)  2 
B)  18 
C)  22 
D)  40 
E)  44 
A)  2 
B)  18 
C)  22 
D)  40 
E)  44

Question 7

Which of the following is the correct formula for cobalt(III) bromide?

Accepted Answer

A)  CoBr 
B)  CoBr3 
C)  Co2Br3 
D)  Co3Br2 
E)  Co3Br 
A)  CoBr 
B)  CoBr3 
C)  Co2Br3 
D)  Co3Br2 
E)  Co3Br

Question 8

How many bromide ions are present in 0.55 g of iron(III) bromide?

Accepted Answer

A)  1.1 × 1021 ions 
B)  3.4 × 1021 ions 
C)  3.3 × 1023 ions 
D)  9.9 × 1023 ions 
E)  2.9 × 1026 ions 
A)  1.1 × 1021 ions 
B)  3.4 × 1021 ions 
C)  3.3 × 1023 ions 
D)  9.9 × 1023 ions 
E)  2.9 × 1026 ions

Question 9

Which of the following elements does 'X' represent in ${ } _ { 28 } ^ { 58 } \mathrm { X }$ ?

Accepted Answer

A)  Ni 
B)  Zn 
C)  Rn 
D)  Ce 
E)  Pd 
A)  Ni 
B)  Zn 
C)  Rn 
D)  Ce 
E)  Pd

Question 10

In a reaction, metals generally lose electrons to become _____, and nonmetals gain electrons to become anions.

Accepted Answer

The answer of In a reaction, metals generally lose electrons...

Question 11

Which of the following is the correct name for the compound CCl4?

Accepted Answer

A)  Carbon chlorine 
B)  Tetracarbon chloride 
C)  Carbon tetrachloride 
D)  Carbon(IV) chloride 
E)  Tetrachlorocarbide 
A)  Carbon chlorine 
B)  Tetracarbon chloride 
C)  Carbon tetrachloride 
D)  Carbon(IV) chloride 
E)  Tetrachlorocarbide

Question 12

Which of the following formulas is not correct?

Accepted Answer

A)  AlPO4 
B)  KClO4 
C)  CaS 
D)  Na(NO3)2 
E)  Na2HPO4 
A)  AlPO4 
B)  KClO4 
C)  CaS 
D)  Na(NO3)2 
E)  Na2HPO4

Question 13

Oxygen and _____ are the two most abundant elements in the Earth's crust.

Accepted Answer

The answer of Oxygen and _____ are the two most...

Question 14

Which of the following atoms of elements is most likely to form a 2+ ion?

Accepted Answer

A)  Scandium 
B)  Calcium 
C)  Aluminum 
D)  Oxygen 
E)  Fluorine 
A)  Scandium 
B)  Calcium 
C)  Aluminum 
D)  Oxygen 
E)  Fluorine

Question 15

Which of the following atoms of elements is most likely to form a 2- ion?

Accepted Answer

A)  Potassium 
B)  Magnesium 
C)  Phosphorus 
D)  Bromine 
E)  Sulfur 
A)  Potassium 
B)  Magnesium 
C)  Phosphorus 
D)  Bromine 
E)  Sulfur

Question 16

The correct name for Cd2+ is _____.

Accepted Answer

A)  monocadmium ion 
B)  cadmium(II) ion 
C)  cadmium(2) ion 
D)  cadmium(I) ion 
E)  cadmium 
A)  monocadmium ion 
B)  cadmium(II) ion 
C)  cadmium(2) ion 
D)  cadmium(I) ion 
E)  cadmium

Question 17

The chemical formula for chromium(III) sulfate is _____.

Accepted Answer

A)  CrSO4 
B)  Cr(SO4)3 
C)  Cr2(SO4)3 
D)  Cr2SO4 
E)  Cr3(SO4)2 
A)  CrSO4 
B)  Cr(SO4)3 
C)  Cr2(SO4)3 
D)  Cr2SO4 
E)  Cr3(SO4)2

Question 18

Which of the following statements is not true about the element vanadium?

Accepted Answer

A)  It is a metal. 
B)  It has chemical and physical properties most similar to krypton. 
C)  It is in period 4. 
D)  It has chemical and physical properties most similar to silver. 
E)  It is in group 5B. 
A)  It is a metal. 
B)  It has chemical and physical properties most similar to krypton. 
C)  It is in period 4. 
D)  It has chemical and physical properties most similar to silver. 
E)  It is in group 5B.

Question 19

A nail is coated with a 0.053 cm thick layer of zinc. The surface area of the nail is 8.59 cm2. The density of zinc is 7.13 g/cm3. How many zinc atoms are used in the coating?

Accepted Answer

A)  5.9 × 1020 atoms 
B)  3.0 × 1022 atoms 
C)  3.8 × 1022 atoms 
D)  2.0 × 1024 atoms 
E)  1.3 × 1026 atoms 
A)  5.9 × 1020 atoms 
B)  3.0 × 1022 atoms 
C)  3.8 × 1022 atoms 
D)  2.0 × 1024 atoms 
E)  1.3 × 1026 atoms

Question 20

What is the molecular mass of cyclononane, C9H18?

Accepted Answer

A)  13.02 g/mol 
B)  1963.92 g/mol 
C)  109.11 g/mol 
D)  126.24 g/mol 
E)  30.15 g/mol 
A)  13.02 g/mol 
B)  1963.92 g/mol 
C)  109.11 g/mol 
D)  126.24 g/mol 
E)  30.15 g/mol

Exam 3: Atoms, Molecules, and Ions

A neutral atom of an isotope 200Hg contains _____.

The formula of acetic acid, CH3CO2H, is an example of a(n) _____.

What is the mass of chlorine-35 relative to carbon-12?

Two isotopes of a given element will have the same number of _____, but a different number of _____ in their nucleus.

What is the common name of the group that has an element with 38 protons in its nucleus?

What is the mass number of an atom of argon with 22 neutrons?

Which of the following is the correct formula for cobalt(III) bromide?

How many bromide ions are present in 0.55 g of iron(III) bromide?

Which of the following elements does 'X' represent in 2858X{ } _ { 28 } ^ { 58 } \mathrm { X }2858​X ?

In a reaction, metals generally lose electrons to become _____, and nonmetals gain electrons to become anions.

Which of the following is the correct name for the compound CCl4?

Which of the following formulas is not correct?

Oxygen and _____ are the two most abundant elements in the Earth's crust.

Which of the following atoms of elements is most likely to form a 2+ ion?

Which of the following atoms of elements is most likely to form a 2- ion?

The correct name for Cd2+ is _____.

The chemical formula for chromium(III) sulfate is _____.

Which of the following statements is not true about the element vanadium?

A nail is coated with a 0.053 cm thick layer of zinc. The surface area of the nail is 8.59 cm2. The density of zinc is 7.13 g/cm3. How many zinc atoms are used in the coating?

What is the molecular mass of cyclononane, C9H18?

Basic Concepts of Chemistry

Lets Review: the Tools of Quantitative Chemistry

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Solid State

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical Reactivity: Electron Transfer Reactions

Environmental Chemistry: Earths Environment, Energy, and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

A neutral atom of an isotope ²⁰⁰Hg contains _____.

The formula of acetic acid, CH₃CO₂H, is an example of a(n) _____.

Two isotopes of a given element will have the same number of _, but a different number of _ in their nucleus.

Which of the following elements does 'X' represent in ${ } _ { 28 } ^ { 58 } \mathrm { X }$ ?

Which of the following is the correct name for the compound CCl₄?

The correct name for Cd²⁺ is _____.

A nail is coated with a 0.053 cm thick layer of zinc. The surface area of the nail is 8.59 cm². The density of zinc is 7.13 g/cm³. How many zinc atoms are used in the coating?

What is the molecular mass of cyclononane, C₉H₁₈?