Question 1

Which of the following would produce the most strongly acidic aqueous solution?

Accepted Answer

A) HCO3- 
B) CO 
C) CO2 
D) CO32- 
E) CaCO3 
A) HCO3- 
B) CO 
C) CO2 
D) CO32- 
E) CaCO3

Question 2

The oxidation state of fluorine in its compounds is ________.

Accepted Answer

A) positive unless it combines with another halogen 
B) negative unless it combines with another halogen 
C) negative unless it combines with oxygen 
D) negative unless it combines with an active metal 
E) always negative 
A) positive unless it combines with another halogen 
B) negative unless it combines with another halogen 
C) negative unless it combines with oxygen 
D) negative unless it combines with an active metal 
E) always negative

Question 3

Water gas is ________.

Accepted Answer

A) H2O and H2 
B) CO2 and O2 
C) H2O and CO2 
D) H2O and CO 
E) H2 and CO 
A) H2O and H2 
B) CO2 and O2 
C) H2O and CO2 
D) H2O and CO 
E) H2 and CO

Question 4

Soda-lime glass contains ________.

Accepted Answer

A) SiO2 and aluminum 
B) SiO2, CaO, and Na2O 
C) SiO2, CO2, and citric acid 
D) SiO2, CO2, Na2O 
E) pure SiO2 
A) SiO2 and aluminum 
B) SiO2, CaO, and Na2O 
C) SiO2, CO2, and citric acid 
D) SiO2, CO2, Na2O 
E) pure SiO2

Question 5

Which group 3A element is a metalloid?

Accepted Answer

A) B 
B) Al 
C) Ga 
D) In 
E) Tl 
A) B 
B) Al 
C) Ga 
D) In 
E) Tl

Question 6

Which group 6A element is not commonly found in a positive oxidation state?

Accepted Answer

A) sulfur 
B) selenium 
C) oxygen 
D) tellurium 
E) polonium 
A) sulfur 
B) selenium 
C) oxygen 
D) tellurium 
E) polonium

Question 7

What is the coefficient of NO2 when the following disproportionation reaction is balanced? NO2 (g) + H2O (l) → H+ (aq) + NO3- (aq) + NO (g)

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 5 
E) 4 
A) 1 
B) 2 
C) 3 
D) 5 
E) 4

Question 8

What sulfur gas is used to sterilize wine?

Accepted Answer

The answer of What sulfur gas is used to sterilize...

Question 9

Write the correctly balanced equation for the reaction between elemental fluorine and sodium iodide.

Accepted Answer

F₂ + 2 NaI

Question 10

All oxides are ionic compounds.

Accepted Answer

A) True 
 B)False

Question 11

Metal oxides are typically ________ while nonmetal oxides are typically ________.

Accepted Answer

A) basic, amphoteric 
B) basic, acidic 
C) amphoteric, basic 
D) acidic, basic 
E) amphoteric, acidic 
A) basic, amphoteric 
B) basic, acidic 
C) amphoteric, basic 
D) acidic, basic 
E) amphoteric, acidic

Question 12

Silicones are ________.

Accepted Answer

A) chains of alternating silicon and oxygen atoms with attached organic groups 
B) three-dimensional covalent networks of SiO4 tetrahedra 
C) three-dimensional covalent networks of silicon atoms 
D) flat sheets of silicon atoms 
E) flat sheets of silicon and hydrogen atoms 
A) chains of alternating silicon and oxygen atoms with attached organic groups 
B) three-dimensional covalent networks of SiO4 tetrahedra 
C) three-dimensional covalent networks of silicon atoms 
D) flat sheets of silicon atoms 
E) flat sheets of silicon and hydrogen atoms

Question 13

Explain why hydrofluoric acid etches glass.

Accepted Answer

Hydrofluoric acid forms a solu

Question 14

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O2 are ________.

Accepted Answer

A) CO2 and H2O 
B) CO2 and H2O2 
C) CO2 and H 
D) C(graphite)and H2 
E) CO2 and H2 
A) CO2 and H2O 
B) CO2 and H2O2 
C) CO2 and H 
D) C(graphite)and H2 
E) CO2 and H2

Question 15

Which halogen forms an oxyacid with the formula HXO2?

Accepted Answer

A) bromine 
B) fluorine 
C) chlorine 
D) iodine 
E) astatine 
A) bromine 
B) fluorine 
C) chlorine 
D) iodine 
E) astatine

Question 16

What is an acetylide?

Accepted Answer

a carbide

Question 17

How many pairs of unpaired electrons are there in one molecule of carbon monoxide?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 18

In a hypohalous acid, the oxidation state of the halogen is ________.

Accepted Answer

The answer of In a hypohalous acid, the oxidation state...

Question 19

What anion containing Cl is used as a rocket fuel?

Accepted Answer

The answer of What anion containing Cl is used as...

Question 20

If a metal forms more than one oxide, the acidic character of the oxide increases as the oxidation state of the metal ________.

Accepted Answer

The answer of If a metal forms more than one...

Exam 22: Chemistry of the Nonmetals

Which of the following would produce the most strongly acidic aqueous solution?

The oxidation state of fluorine in its compounds is ________.

Water gas is ________.

Soda-lime glass contains ________.

Which group 3A element is a metalloid?

Which group 6A element is not commonly found in a positive oxidation state?

What is the coefficient of NO2 when the following disproportionation reaction is balanced? NO2 (g) + H2O (l) → H+ (aq) + NO3- (aq) + NO (g)

What sulfur gas is used to sterilize wine?

Write the correctly balanced equation for the reaction between elemental fluorine and sodium iodide.

All oxides are ionic compounds.

Metal oxides are typically ________ while nonmetal oxides are typically ________.

Silicones are ________.

Explain why hydrofluoric acid etches glass.

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O2 are ________.

Which halogen forms an oxyacid with the formula HXO2?

What is an acetylide?

How many pairs of unpaired electrons are there in one molecule of carbon monoxide?

In a hypohalous acid, the oxidation state of the halogen is ________.

What anion containing Cl is used as a rocket fuel?

If a metal forms more than one oxide, the acidic character of the oxide increases as the oxidation state of the metal ________.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

What is the coefficient of NO₂ when the following disproportionation reaction is balanced? NO₂ (g) + H₂O (l) → H⁺ (aq) + NO₃^- (aq) + NO (g)

Metal oxides are typically while nonmetal oxides are typically .

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O₂ are ________.

Which halogen forms an oxyacid with the formula HXO₂?