Question 1

Which, if any, of the following elements do not occur in the major classes of organic compounds?

Accepted Answer

A)  H 
B)  C 
C)  N 
D)  O 
E)  All of these choices are correct. 
A)  H 
B)  C 
C)  N 
D)  O 
E)  All of these choices are correct. E

Question 2

Which of the following is a nonmetal?

Accepted Answer

A)  lithium, Li, Z = 3 
B)  bromine, Br, Z = 35 
C)  mercury, Hg, Z = 80 
D)  bismuth, Bi, Z = 83 
E)  sodium, Na, Z = 11 
A)  lithium, Li, Z = 3 
B)  bromine, Br, Z = 35 
C)  mercury, Hg, Z = 80 
D)  bismuth, Bi, Z = 83 
E)  sodium, Na, Z = 11 B

Question 3

One amu is defined as

Accepted Answer

A)  the mass of a proton. 
B)  1/12 the mass of an atom of   . 
C)  the mass of an atom of   . 
D)  1/20 the mass of an atom of   . 
E)  1/16 the mass of an atom of   . 
A)  the mass of a proton. 
B)  1/12 the mass of an atom of   . 
C)  the mass of an atom of   . 
D)  1/20 the mass of an atom of   . 
E)  1/16 the mass of an atom of   . B

Question 4

An isotope of which of the following elements is chosen as a standard in measuring atomic mass?

Accepted Answer

A)  carbon 
B)  oxygen 
C)  hydrogen 
D)  neon 
E)  helium 
A)  carbon 
B)  oxygen 
C)  hydrogen 
D)  neon 
E)  helium

Question 5

Which of the following has the most metallic character?

Accepted Answer

A)  Ge 
B)  In 
C)  O 
D)  P 
E)  Sb 
A)  Ge 
B)  In 
C)  O 
D)  P 
E)  Sb

Question 6

Who is credited with first measuring the charge of the electron?

Accepted Answer

A)  Dalton 
B)  Gay-Lussac 
C)  Thomson 
D)  Millikan 
E)  Rutherford 
A)  Dalton 
B)  Gay-Lussac 
C)  Thomson 
D)  Millikan 
E)  Rutherford

Question 7

What is the name of the acid formed when HBr gas is dissolved in water?

Accepted Answer

A)  bromic acid 
B)  bromous acid 
C)  hydrobromic acid 
D)  hydrobromous acid 
E)  hydrobromidic acid 
A)  bromic acid 
B)  bromous acid 
C)  hydrobromic acid 
D)  hydrobromous acid 
E)  hydrobromidic acid

Question 8

What is the formula for magnesium sulfide?

Accepted Answer

A)  MgS 
B)  MgS2 
C)  Mg2S 
D)  Mg2S3 
E)  MgSO4 
A)  MgS 
B)  MgS2 
C)  Mg2S 
D)  Mg2S3 
E)  MgSO4

Question 9

What is the name of the acid formed when H2S gas is dissolved in water?

Accepted Answer

A)  sulfuric acid 
B)  sulfurous acid 
C)  hydrosulfuric acid 
D)  hydrosulfurous acid 
E)  sulfidic acid 
A)  sulfuric acid 
B)  sulfurous acid 
C)  hydrosulfuric acid 
D)  hydrosulfurous acid 
E)  sulfidic acid

Question 10

Millikan's oil-drop experiment

Accepted Answer

A)  established the charge on an electron. 
B)  showed that all oil drops carried the same charge. 
C)  provided support for the nuclear model of the atom. 
D)  suggested that some oil drops carried fractional numbers of electrons. 
E)  suggested the presence of a neutral particle in the atom. 
A)  established the charge on an electron. 
B)  showed that all oil drops carried the same charge. 
C)  provided support for the nuclear model of the atom. 
D)  suggested that some oil drops carried fractional numbers of electrons. 
E)  suggested the presence of a neutral particle in the atom.

Question 11

Which one of the following statements about atoms and subatomic particles is correct?

Accepted Answer

A)  Rutherford discovered the atomic nucleus by bombarding gold foil with electrons. 
B)  The proton and the neutron have identical masses. 
C)  The neutron's mass is equal to that of a proton plus an electron. 
D)  A neutral atom contains equal numbers of protons and electrons. 
E)  An atomic nucleus contains equal numbers of protons and neutrons. 
A)  Rutherford discovered the atomic nucleus by bombarding gold foil with electrons. 
B)  The proton and the neutron have identical masses. 
C)  The neutron's mass is equal to that of a proton plus an electron. 
D)  A neutral atom contains equal numbers of protons and electrons. 
E)  An atomic nucleus contains equal numbers of protons and neutrons.

Question 12

Which one of the following groups does not contain any metals?

Accepted Answer

A)  C, S, As, H 
B)  Cu, P, Se, Kr 
C)  N, Ne, Nd, Np 
D)  Xe, Hg, Ge, O 
E)  Cl, Al, Si, Ar 
A)  C, S, As, H 
B)  Cu, P, Se, Kr 
C)  N, Ne, Nd, Np 
D)  Xe, Hg, Ge, O 
E)  Cl, Al, Si, Ar

Question 13

Which one of the following combinations of names and formulas of ions is incorrect?

Accepted Answer

A)  O2- oxide 
B)  Al3+ aluminum 
C)  NO3- nitrate 
D)  PO43- phosphate 
E)  CrO42- chromate 
A)  O2- oxide 
B)  Al3+ aluminum 
C)  NO3- nitrate 
D)  PO43- phosphate 
E)  CrO42- chromate

Question 14

Ionic compounds may carry a net positive or negative charge.

Accepted Answer

A) True 
 B)False

Question 15

The substance, CaSe, is used in materials which are electron emitters. What is its name?

Accepted Answer

A)  calcium monoselenide 
B)  calcium(II) selenide 
C)  calcium selenide 
D)  calcium(I) selenide 
E)  calcium(II) selenium 
A)  calcium monoselenide 
B)  calcium(II) selenide 
C)  calcium selenide 
D)  calcium(I) selenide 
E)  calcium(II) selenium

Question 16

What is the name of IF7?

Accepted Answer

A)  iodine fluoride 
B)  iodic fluoride 
C)  iodine heptafluoride 
D)  heptafluoroiodide 
E)  heptafluorine iodide 
A)  iodine fluoride 
B)  iodic fluoride 
C)  iodine heptafluoride 
D)  heptafluoroiodide 
E)  heptafluorine iodide

Question 17

The chemical symbol for potassium is

Accepted Answer

A)  P. 
B)  Po. 
C)  Pt. 
D)  Pm. 
E)  K. 
A)  P. 
B)  Po. 
C)  Pt. 
D)  Pm. 
E)  K.

Question 18

Calcium hydroxide is used in mortar, plaster, and cement. What is its formula?

Accepted Answer

A)  CaOH 
B)  CaOH2 
C)  Ca2OH 
D)  Ca(OH)2 
E)  CaHO2 
A)  CaOH 
B)  CaOH2 
C)  Ca2OH 
D)  Ca(OH)2 
E)  CaHO2

Question 19

Select the incorrect statement about elements and compounds.

Accepted Answer

A)  All ionic compounds are neutral. 
B)  Some elements exist as molecules. 
C)  The bonding in compounds may be covalent or ionic. 
D)  The molecular formula of a compound provides more information than the structural formula. 
E)  Among the elements, there are more metals than nonmetals. 
A)  All ionic compounds are neutral. 
B)  Some elements exist as molecules. 
C)  The bonding in compounds may be covalent or ionic. 
D)  The molecular formula of a compound provides more information than the structural formula. 
E)  Among the elements, there are more metals than nonmetals.

Question 20

Potassium permanganate is a strong oxidizer that reacts explosively with easily oxidized materials. What is its formula?

Accepted Answer

A)  KMnO3 
B)  KMnO4 
C)  K2MnO4 
D)  K(MnO4)2 
E)  K2Mn2O7 
A)  KMnO3 
B)  KMnO4 
C)  K2MnO4 
D)  K(MnO4)2 
E)  K2Mn2O7

Exam 2: The Components of Matter

Which, if any, of the following elements do not occur in the major classes of organic compounds?

Which of the following is a nonmetal?

One amu is defined as

An isotope of which of the following elements is chosen as a standard in measuring atomic mass?

Which of the following has the most metallic character?

Who is credited with first measuring the charge of the electron?

What is the name of the acid formed when HBr gas is dissolved in water?

What is the formula for magnesium sulfide?

What is the name of the acid formed when H2S gas is dissolved in water?

Millikan's oil-drop experiment

Which one of the following statements about atoms and subatomic particles is correct?

Which one of the following groups does not contain any metals?

Which one of the following combinations of names and formulas of ions is incorrect?

Ionic compounds may carry a net positive or negative charge.

The substance, CaSe, is used in materials which are electron emitters. What is its name?

What is the name of IF7?

The chemical symbol for potassium is

Calcium hydroxide is used in mortar, plaster, and cement. What is its formula?

Select the incorrect statement about elements and compounds.

Potassium permanganate is a strong oxidizer that reacts explosively with easily oxidized materials. What is its formula?

Keys to Studying Chemistry Definitions, Units, and Problem Solving

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces Liquids, Solids, and Phase Changes

The Properties of Mixtures Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics Rates and Mechanisms of Chemical Reactions

Equilibrium the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics Entropy, Free Energy, and Reaction Direction

Electrochemistry Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

What is the name of the acid formed when H₂S gas is dissolved in water?

What is the name of IF₇?