Question 1

Why does calcium carbonate dissolve in water containing carbon dioxide?

Accepted Answer

because the dissolve

Question 2

Although CaCO3 is essentially insoluble in pure water, it dissolves slowly in acidic ground water due to formation of ________.

Accepted Answer

A) insoluble Ca(OH)2 
B) soluble Ca(OH)2 
C) insoluble Ca(HCO3)2 
D) soluble Ca(HCO3)2 
E) soluble CaO 
A) insoluble Ca(OH)2 
B) soluble Ca(OH)2 
C) insoluble Ca(HCO3)2 
D) soluble Ca(HCO3)2 
E) soluble CaO

Question 3

The primary commercial use of oxygen is ________.

Accepted Answer

A) for the treatment of respiratory distress 
B) in oxyacetylene welding 
C) as a household bleach 
D) as an oxidizing agent 
E) to charge oxygen-containing cylinders used by deep-sea divers 
A) for the treatment of respiratory distress 
B) in oxyacetylene welding 
C) as a household bleach 
D) as an oxidizing agent 
E) to charge oxygen-containing cylinders used by deep-sea divers

Question 4

The electrical conductivity of ________ is low in the dark, but increases on exposure to light.

Accepted Answer

The answer of The electrical conductivity of ________ is low...

Question 5

What are the products of the reaction of PF3 (g)and water?

Accepted Answer

A) phosphorous acid and hydrofluoric acid 
B) elemental phosphorus and hydrofluoric acid 
C) phosphoric acid and fluorine gas 
D) elemental phosphorus and fluorine gas 
E) phosphoric acid and phosphorous acid 
A) phosphorous acid and hydrofluoric acid 
B) elemental phosphorus and hydrofluoric acid 
C) phosphoric acid and fluorine gas 
D) elemental phosphorus and fluorine gas 
E) phosphoric acid and phosphorous acid

Question 6

Nearly all commercial oxygen is obtained ________.

Accepted Answer

A) from air 
B) by electrolysis of water 
C) by thermal decomposition of potassium chlorate 
D) by thermal cracking of petroleum 
E) as a byproduct of the preparation of aluminum in the Hall process 
A) from air 
B) by electrolysis of water 
C) by thermal decomposition of potassium chlorate 
D) by thermal cracking of petroleum 
E) as a byproduct of the preparation of aluminum in the Hall process

Question 7

The arrangement of oxygen atoms around a silicon atom in SiO44- is ________.

Accepted Answer

A) square planar 
B) octahedral 
C) linear 
D) tetrahedral 
E) trigonal pyramidal 
A) square planar 
B) octahedral 
C) linear 
D) tetrahedral 
E) trigonal pyramidal

Question 8

The oxidation numbers of nitrogen in the nitride ion, hydrazine, ammonium cation, and nitrate ion are ________, ________, ________, and ________, respectively.

Accepted Answer

A) -3, -2, -3, +5 
B) +3, -2, -3, +5 
C) +3, -2, +1, +3 
D) -3, +2, +1, +5 
E) -3, +2, -3, +3 
A) -3, -2, -3, +5 
B) +3, -2, -3, +5 
C) +3, -2, +1, +3 
D) -3, +2, +1, +5 
E) -3, +2, -3, +3

Question 9

Which noble gas is known to form a variety of binary compounds?

Accepted Answer

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

Question 10

Consider the following xenon compounds: (i) XeF2 (ii) XeF4 (iii) XeO4 (iv) XeOF4 (v) XeO3
Which of the compounds is(are)polar?

Accepted Answer

A) (i)only 
B) (ii)and (iii) 
C) (iv)only 
D) (iii)and (iv) 
E) (iv)and (v) 
A) (i)only 
B) (ii)and (iii) 
C) (iv)only 
D) (iii)and (iv) 
E) (iv)and (v)

Question 11

The number of electrons in the valence shell of Xe in XeF6 is ________

Accepted Answer

A) 10 
B) 12 
C) 14 
D) 6 
E) 8 
A) 10 
B) 12 
C) 14 
D) 6 
E) 8

Question 12

Which one of the following is true concerning borax?

Accepted Answer

A) It is the hydrated sodium salt of tetraboric acid. 
B) It is found in dry lake deposits in California. 
C) Its aqueous solutions are alkaline. 
D) It is commonly used in cleaning products. 
E) All of the above are true. 
A) It is the hydrated sodium salt of tetraboric acid. 
B) It is found in dry lake deposits in California. 
C) Its aqueous solutions are alkaline. 
D) It is commonly used in cleaning products. 
E) All of the above are true.

Question 13

The most stable allotrope of oxygen is ________.

Accepted Answer

A) H2O 
B) O3 
C) O2 
D) HClO 
E) O 
A) H2O 
B) O3 
C) O2 
D) HClO 
E) O

Question 14

Amphoteric oxides are also known as ________.

Accepted Answer

A) basic oxides 
B) basic anhydrides 
C) acidic oxides 
D) acidic anhydrides 
E) none of the above 
A) basic oxides 
B) basic anhydrides 
C) acidic oxides 
D) acidic anhydrides 
E) none of the above

Why does calcium carbonate dissolve in water containing carbon dioxide?

Although CaCO₃ is essentially insoluble in pure water, it dissolves slowly in acidic ground water due to formation of ________.

The primary commercial use of oxygen is ________.

The electrical conductivity of ________ is low in the dark, but increases on exposure to light.

What are the products of the reaction of PF₃ (g)and water?

Nearly all commercial oxygen is obtained ________.

The arrangement of oxygen atoms around a silicon atom in SiO₄⁴^- is ________.

The oxidation numbers of nitrogen in the nitride ion, hydrazine, ammonium cation, and nitrate ion are , , , and , respectively.

Which noble gas is known to form a variety of binary compounds?

Consider the following xenon compounds: (i) XeF₂ (ii) XeF₄ (iii) XeO₄ (iv) XeOF₄ (v) XeO₃ Which of the compounds is(are)polar?

The number of electrons in the valence shell of Xe in XeF₆ is ________

Which one of the following is true concerning borax?

The most stable allotrope of oxygen is ________.

Amphoteric oxides are also known as ________.

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

Exam 22: Chemistry of the Nonmetals

Why does calcium carbonate dissolve in water containing carbon dioxide?

Although CaCO3 is essentially insoluble in pure water, it dissolves slowly in acidic ground water due to formation of ________.

The primary commercial use of oxygen is ________.

The electrical conductivity of ________ is low in the dark, but increases on exposure to light.

What are the products of the reaction of PF3 (g)and water?

Nearly all commercial oxygen is obtained ________.

The arrangement of oxygen atoms around a silicon atom in SiO44- is ________.

The oxidation numbers of nitrogen in the nitride ion, hydrazine, ammonium cation, and nitrate ion are ________, ________, ________, and ________, respectively.

Which noble gas is known to form a variety of binary compounds?

Consider the following xenon compounds: (i) XeF2 (ii) XeF4 (iii) XeO4 (iv) XeOF4 (v) XeO3 Which of the compounds is(are)polar?

The number of electrons in the valence shell of Xe in XeF6 is ________

Which one of the following is true concerning borax?

The most stable allotrope of oxygen is ________.

Amphoteric oxides are also known as ________.

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

Although CaCO₃ is essentially insoluble in pure water, it dissolves slowly in acidic ground water due to formation of ________.

What are the products of the reaction of PF₃ (g)and water?

The arrangement of oxygen atoms around a silicon atom in SiO₄⁴^- is ________.

The oxidation numbers of nitrogen in the nitride ion, hydrazine, ammonium cation, and nitrate ion are , , , and , respectively.

Consider the following xenon compounds: (i) XeF₂ (ii) XeF₄ (iii) XeO₄ (iv) XeOF₄ (v) XeO₃ Which of the compounds is(are)polar?

The number of electrons in the valence shell of Xe in XeF₆ is ________