Question 1

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

Accepted Answer

A)  CaCl2 
B)  NaSO4 
C)  MgCO3 
D)  KF 
E)  Cu(NO3)2 
A)  CaCl2 
B)  NaSO4 
C)  MgCO3 
D)  KF 
E)  Cu(NO3)2

Question 2

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 3

The formula C9H20 is an empirical formula.

Accepted Answer

A) True 
 B)False

Question 4

Silver chloride is used in photographic emulsions. What is its formula?

Accepted Answer

A)  Ag2Cl3 
B)  Ag2Cl 
C)  AgCl3 
D)  AgCl2 
E)  AgCl 
A)  Ag2Cl3 
B)  Ag2Cl 
C)  AgCl3 
D)  AgCl2 
E)  AgCl

Question 5

After an atom has lost an electron it becomes a/an ______ and has a _______ charge.

Accepted Answer

A)  anion, positive 
B)  isotope, negative 
C)  anion, negative 
D)  cation, positive 
E)  nucleus, positive 
A)  anion, positive 
B)  isotope, negative 
C)  anion, negative 
D)  cation, positive 
E)  nucleus, positive

Question 6

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

Accepted Answer

A)  Ba2+ barium 
B)  S2- sulfate 
C)  CN- cyanide 
D)  ClO4- perchlorate 
E)  HCO3- bicarbonate 
A)  Ba2+ barium 
B)  S2- sulfate 
C)  CN- cyanide 
D)  ClO4- perchlorate 
E)  HCO3- bicarbonate

Question 7

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 8

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 9

What is the formula for lead (II) oxide?

Accepted Answer

A)  PbO 
B)  PbO2 
C)  Pb2O 
D)  PbO4 
E)  Pb2O3 
A)  PbO 
B)  PbO2 
C)  Pb2O 
D)  PbO4 
E)  Pb2O3

Question 10

Lead (Pb) is a main-group element.

Accepted Answer

A) True 
 B)False

Question 11

The compound, P4S10, is used in the manufacture of safety matches. What is its name?

Accepted Answer

A)  phosphorus sulfide 
B)  phosphoric sulfide 
C)  phosphorus decasulfide 
D)  tetraphosphorus decasulfide 
E)  phosphorus pentasulfide 
A)  phosphorus sulfide 
B)  phosphoric sulfide 
C)  phosphorus decasulfide 
D)  tetraphosphorus decasulfide 
E)  phosphorus pentasulfide

Question 12

Iodine pentafluoride reacts slowly with glass and violently with water. Determine its molecular mass.

Accepted Answer

A)  653.52 amu 
B)  259.89 amu 
C)  221.90 amu 
D)  202.90 amu 
E)  145.90 amu 
A)  653.52 amu 
B)  259.89 amu 
C)  221.90 amu 
D)  202.90 amu 
E)  145.90 amu

Question 13

A column of the periodic table is called a

Accepted Answer

A)  group. 
B)  period. 
C)  isotopic mixture. 
D)  pillar. 
E)  shell. 
A)  group. 
B)  period. 
C)  isotopic mixture. 
D)  pillar. 
E)  shell.

Question 14

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 15

When an alkali metal combines with a non-metal, a covalent bond is normally formed.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following symbols does not represent an element?

Accepted Answer

A)  O2 
B)  Co 
C)  HF 
D)  Cs 
E)  Xe 
A)  O2 
B)  Co 
C)  HF 
D)  Cs 
E)  Xe

Question 17

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

Accepted Answer

A)  cyanic acid 
B)  hydrocyanic acid 
C)  cyanous acid 
D)  hydrocyanous acid 
E)  hydrogen cyanide 
A)  cyanic acid 
B)  hydrocyanic acid 
C)  cyanous acid 
D)  hydrocyanous acid 
E)  hydrogen cyanide

Question 18

Tetrasulfur dinitride decomposes explosively when heated. What is its formula?

Accepted Answer

A)  S2N4 
B)  S4N2 
C)  4SN2 
D)  S4N 
E)  S2N 
A)  S2N4 
B)  S4N2 
C)  4SN2 
D)  S4N 
E)  S2N

Question 19

Give the common name of the group in the periodic table to which each of the following elements belongs:
a. Rb
b. Br
c. Ba
d. Ar

Accepted Answer

a. alkali metals
b.

Question 20

A row of the periodic table is called a

Accepted Answer

A)  group. 
B)  period. 
C)  isotopic mixture. 
D)  family. 
E)  subshell. 
A)  group. 
B)  period. 
C)  isotopic mixture. 
D)  family. 
E)  subshell.

Exam 2: The Components of Matter

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

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

The formula C9H20 is an empirical formula.

Silver chloride is used in photographic emulsions. What is its formula?

After an atom has lost an electron it becomes a/an ______ and has a _______ charge.

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

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

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

What is the formula for lead (II) oxide?

Lead (Pb) is a main-group element.

The compound, P4S10, is used in the manufacture of safety matches. What is its name?

Iodine pentafluoride reacts slowly with glass and violently with water. Determine its molecular mass.

A column of the periodic table is called a

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

When an alkali metal combines with a non-metal, a covalent bond is normally formed.

Which of the following symbols does not represent an element?

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

Tetrasulfur dinitride decomposes explosively when heated. What is its formula?

Give the common name of the group in the periodic table to which each of the following elements belongs: a. Rb b. Br c. Ba d. Ar

A row of the periodic table is called a

Keys to the Study of Chemistry

Stoichiometry of Formulas and Equations

The 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: Bonding, Structure, and Reactivity

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 the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

The formula C₉H₂₀ is an empirical formula.

After an atom has lost an electron it becomes a/an and has a _ charge.

The compound, P₄S₁₀, is used in the manufacture of safety matches. What is its name?