Question 1

Determine the molecular mass of iron (III) bromide hexahydrate, a substance used as a catalyst in organic reactions.

Accepted Answer

A) 403.65 amu 
B) 355.54 amu 
C) 317.61 amu 
D) 313.57 amu 
E) 295.56 amu 
A) 403.65 amu 
B) 355.54 amu 
C) 317.61 amu 
D) 313.57 amu 
E) 295.56 amu

Question 2

What is the formula for lithium nitrite?

Accepted Answer

A) LiNO 2 
B) Li 2NO 2 
C) LiNO 3 
D) Li 2NO 3 
E) LiNO 4 
A) LiNO 2 
B) Li 2NO 2 
C) LiNO 3 
D) Li 2NO 3 
E) LiNO 4

Question 3

Ionic compounds may carry a net positive or negative charge.

Accepted Answer

A) True 
 B)False

Question 4

Copper (Cu) is a transition metal.

Accepted Answer

A) True 
 B)False

Question 5

In nature, some elements exist as molecules, while others do not.

Accepted Answer

A) True 
 B)False

Question 6

The formula C9H20 is an empirical formula.

Accepted Answer

A) True 
 B)False

Question 7

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

Accepted Answer

A) O 2 − oxide 
B) Al 3+ aluminum 
C) NO 3 − nitrate 
D) PO 4 3− phosphate 
E) CrO 4 2− chromate 
A) O 2 − oxide 
B) Al 3+ aluminum 
C) NO 3 − nitrate 
D) PO 4 3− phosphate 
E) CrO 4 2− chromate

Question 8

Zinc acetate is used in preserving wood and in manufacturing glazes for porcelain. What is its formula?

Accepted Answer

A) ZnAc 2 
B) ZnCH 3COO 
C) Zn(CH 3COO)2 
D) Zn 2CH 3COO 
E) ZnCH 3COCH 3 
A) ZnAc 2 
B) ZnCH 3COO 
C) Zn(CH 3COO)2 
D) Zn 2CH 3COO 
E) ZnCH 3COCH 3

Question 9

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   .

Question 10

In the modern periodic table, the order in which the elements are placed is based on

Accepted Answer

A) atomic mass. 
B) mass number. 
C) atomic number. 
D) atomic size. 
E) chemical reactivity. 
A) atomic mass. 
B) mass number. 
C) atomic number. 
D) atomic size. 
E) chemical reactivity.

Question 11

Sodium oxide combines violently with water. Which of the following gives the formula and the bonding for sodium oxide?

Accepted Answer

A) NaO, ionic compound 
B) NaO, covalent compound 
C) Na 2O, ionic compound 
D) Na 2O, covalent compound 
E) Na 2O 2, ionic compound 
A) NaO, ionic compound 
B) NaO, covalent compound 
C) Na 2O, ionic compound 
D) Na 2O, covalent compound 
E) Na 2O 2, ionic compound

Question 12

Barium fluoride is used in embalming and in glass manufacturing. Which of the following gives the formula and bonding for barium fluoride?

Accepted Answer

A) BaF 2, ionic compound 
B) BaF 2, covalent compound 
C) BaF, ionic compound 
D) BaF, covalent compound 
E) Ba 2F, ionic compound 
A) BaF 2, ionic compound 
B) BaF 2, covalent compound 
C) BaF, ionic compound 
D) BaF, covalent compound 
E) Ba 2F, ionic compound

Question 13

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

Accepted Answer

A) Ag 2Cl 3 
B) Ag 2Cl 
C) AgCl 3 
D) AgCl 2 
E) AgCl 
A) Ag 2Cl 3 
B) Ag 2Cl 
C) AgCl 3 
D) AgCl 2 
E) AgCl

Question 14

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 15

Iron (III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes. What is its formula?

Accepted Answer

A) Fe(Cl·6H2O)3 
B) Fe 3Cl·6H 2O 
C) FeCl 3(H 2O)6 
D) Fe 3Cl(H 2O)6 
E) FeCl 3·6H 2O 
A) Fe(Cl·6H2O)3 
B) Fe 3Cl·6H 2O 
C) FeCl 3(H 2O)6 
D) Fe 3Cl(H 2O)6 
E) FeCl 3·6H 2O

Question 16

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 17

The molecular formula of a compound provides more information than its structural formula.

Accepted Answer

A) True 
 B)False

Question 18

What is the name of Na2O?

Accepted Answer

A) Disodium monoxide 
B) Sodium monoxide 
C) Sodium dioxide 
D) Sodium(I)oxide 
E) Sodium oxide 
A) Disodium monoxide 
B) Sodium monoxide 
C) Sodium dioxide 
D) Sodium(I)oxide 
E) Sodium oxide

Question 19

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

Accepted Answer

A) NH 4Cl 
B) Ba(OH)2 
C) Na 2SO 4 
D) Ca 2NO 3 
E) Cu(CN)2 
A) NH 4Cl 
B) Ba(OH)2 
C) Na 2SO 4 
D) Ca 2NO 3 
E) Cu(CN)2

Question 20

The name for HF(g) is

Accepted Answer

A) Hydrofluoric acid. 
B) Hydrogen(I)fluoride. 
C) Hydrogen fluoride. 
D) Hydrogen fluorine. 
E) Fluoric acid. 
A) Hydrofluoric acid. 
B) Hydrogen(I)fluoride. 
C) Hydrogen fluoride. 
D) Hydrogen fluorine. 
E) Fluoric acid.

Exam 2: The Components of Matter

Determine the molecular mass of iron (III) bromide hexahydrate, a substance used as a catalyst in organic reactions.

What is the formula for lithium nitrite?

Ionic compounds may carry a net positive or negative charge.

Copper (Cu) is a transition metal.

In nature, some elements exist as molecules, while others do not.

The formula C9H20 is an empirical formula.

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

Zinc acetate is used in preserving wood and in manufacturing glazes for porcelain. What is its formula?

One amu is defined as

In the modern periodic table, the order in which the elements are placed is based on

Sodium oxide combines violently with water. Which of the following gives the formula and the bonding for sodium oxide?

Barium fluoride is used in embalming and in glass manufacturing. Which of the following gives the formula and bonding for barium fluoride?

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

What is the name of IF7?

Iron (III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes. What is its formula?

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

The molecular formula of a compound provides more information than its structural formula.

What is the name of Na2O?

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

The name for HF(g) is

Keys to the Study of 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

The formula C₉H₂₀ is an empirical formula.

What is the name of IF₇?

What is the name of Na₂O?