Question 1

The oxidation number of As in H2AsO3- is ________.

Accepted Answer

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

Question 2

What is the formula of borax?

Accepted Answer

A) H3BO3 
B) H2B4O7 
C) P5O8 
D) B2O3 
E) Na2B4O7 ∙ 10H2O 
A) H3BO3 
B) H2B4O7 
C) P5O8 
D) B2O3 
E) Na2B4O7 ∙ 10H2O E

Question 3

Which equation correctly represents the reaction between elemental chlorine and sodium iodide?

Accepted Answer

A) Cl + NaI → I + NaCl 
B) Cl- + NaI → I- + NaCl 
C) Cl2 + 2NaI → I2 + 2NaCl 
D) Cl + NaI → 1/2 I2 + NaCl 
E) Cl2 + NaI → NaCl2 + I- 
A) Cl + NaI → I + NaCl 
B) Cl- + NaI → I- + NaCl 
C) Cl2 + 2NaI → I2 + 2NaCl 
D) Cl + NaI → 1/2 I2 + NaCl 
E) Cl2 + NaI → NaCl2 + I- C

Question 4

What is the oxidation state of xenon in XeO4?

Accepted Answer

A) +8 
B) +6 
C) +4 
D) +2 
E) 0 
A) +8 
B) +6 
C) +4 
D) +2 
E) 0

Question 5

Explain why HF (aq)is a relatively weak acid compared to other hydrohalic acids.

Accepted Answer

(i) Fluorine, being the smallest of the

Question 6

What are the three steps in the Ostwald process of nitric acid synthesis?

Accepted Answer

1)oxidation of ammon

Question 7

________ has the lowest boiling point of any substance known.

Accepted Answer

A) Ne 
B) He 
C) Ar 
D) Kr 
E) Rn 
A) Ne 
B) He 
C) Ar 
D) Kr 
E) Rn

Question 8

What is the major commercial source of elemental sulfur?

Accepted Answer

A) sulfide minerals 
B) sulfate minerals 
C) underground deposits of elemental sulfur 
D) seawater 
E) coal and petroleum 
A) sulfide minerals 
B) sulfate minerals 
C) underground deposits of elemental sulfur 
D) seawater 
E) coal and petroleum

Question 9

Ozone is a pale blue poisonous gas with an irritating odor.

Accepted Answer

A) True 
 B)False

Question 10

Compounds containing only boron and hydrogen are called ________.

Accepted Answer

The answer of Compounds containing only boron and hydrogen are...

Question 11

Addition of B2O3 to soda-lime glass ________.

Accepted Answer

A) imparts a greater ability to withstand temperature change 
B) imparts a deep blue color 
C) results in a denser glass with a higher refractive index 
D) results in a glass with a lower melting point 
E) results in opaque glass 
A) imparts a greater ability to withstand temperature change 
B) imparts a deep blue color 
C) results in a denser glass with a higher refractive index 
D) results in a glass with a lower melting point 
E) results in opaque glass

Question 12

H2 is reacted with ________ to produce methanol.

Accepted Answer

Question 13

What is the primary commercial source of elemental nitrogen?

Accepted Answer

fractional

Question 14

The oxidation state of oxygen in OF2 is ________.

Accepted Answer

A) +1 
B) +2 
C) 0 
D) -1 
E) -2 
A) +1 
B) +2 
C) 0 
D) -1 
E) -2

Question 15

KNO3 and NaNO3 are also known as ________.

Accepted Answer

Question 16

The oxidation state of chlorine in the ClO- molecule is ________.

Accepted Answer

A) +1 
B) +3 
C) +4 
D) +5 
E) -1 
A) +1 
B) +3 
C) +4 
D) +5 
E) -1

Question 17

The two allotropic forms of phosphorus are ________ and ________.

Accepted Answer

A) black, red 
B) white, black 
C) white, yellow 
D) white, red 
E) black, yellow 
A) black, red 
B) white, black 
C) white, yellow 
D) white, red 
E) black, yellow

Question 18

Which of the following statements is false?

Accepted Answer

A) Ozone is a better reducing agent than O2 (g). 
B) Ozone is produced by passing electricity through dry O2 (g). 
C) Ozone oxidizes all of the common metals except gold and platinum. 
D) Ozone decomposes to O2 and O. 
E) Ozone is an allotrope of oxygen. 
A) Ozone is a better reducing agent than O2 (g). 
B) Ozone is produced by passing electricity through dry O2 (g). 
C) Ozone oxidizes all of the common metals except gold and platinum. 
D) Ozone decomposes to O2 and O. 
E) Ozone is an allotrope of oxygen.

Question 19

Write the correctly balanced equation for the reaction between elemental iodine and sodium bromide.

Accepted Answer

I₂ + NaBr →

Question 20

The oxidation state of nitrogen in the NO2 molecule is ________.

Accepted Answer

A) +4 
B) +3 
C) +5 
D) +2 
E) -3 
A) +4 
B) +3 
C) +5 
D) +2 
E) -3

Exam 22: Chemistry of the Nonmetals

The oxidation number of As in H2AsO3- is ________.

What is the formula of borax?

Which equation correctly represents the reaction between elemental chlorine and sodium iodide?

What is the oxidation state of xenon in XeO4?

Explain why HF (aq)is a relatively weak acid compared to other hydrohalic acids.

What are the three steps in the Ostwald process of nitric acid synthesis?

________ has the lowest boiling point of any substance known.

What is the major commercial source of elemental sulfur?

Ozone is a pale blue poisonous gas with an irritating odor.

Compounds containing only boron and hydrogen are called ________.

Addition of B2O3 to soda-lime glass ________.

H2 is reacted with ________ to produce methanol.

What is the primary commercial source of elemental nitrogen?

The oxidation state of oxygen in OF2 is ________.

KNO3 and NaNO3 are also known as ________.

The oxidation state of chlorine in the ClO- molecule is ________.

The two allotropic forms of phosphorus are ________ and ________.

Which of the following statements is false?

Write the correctly balanced equation for the reaction between elemental iodine and sodium bromide.

The oxidation state of nitrogen in the NO2 molecule is ________.

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

The oxidation number of As in H₂AsO₃^- is ________.

What is the oxidation state of xenon in XeO₄?

Addition of B₂O₃ to soda-lime glass ________.

H₂ is reacted with ________ to produce methanol.

The oxidation state of oxygen in OF₂ is ________.

KNO₃ and NaNO₃ are also known as ________.

The oxidation state of chlorine in the ClO^- molecule is ________.

The two allotropic forms of phosphorus are and .

The oxidation state of nitrogen in the NO₂ molecule is ________.