Question 1

A borane is a ________.

Accepted Answer

A) compound containing only boron and oxygen 
B) compound containing only boron and aluminum 
C) compound containing only boron and hydrogen 
D) compound containing only boron and carbon 
E) three-dimensional covalent network of boron atoms 
A) compound containing only boron and oxygen 
B) compound containing only boron and aluminum 
C) compound containing only boron and hydrogen 
D) compound containing only boron and carbon 
E) three-dimensional covalent network of boron atoms

Question 2

The most common isotope of hydrogen is sometimes referred to as ________.

Accepted Answer

A) deuterium 
B) protium 
C) tritium 
D) heavy hydrogen 
E) common hydrogen 
A) deuterium 
B) protium 
C) tritium 
D) heavy hydrogen 
E) common hydrogen

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

An example of a form of pure carbon that contains only sp3 hybridized carbon atoms is ________.

Accepted Answer

A) diamond 
B) charcoal 
C) graphite 
D) carbon black 
E) carborundum 
A) diamond 
B) charcoal 
C) graphite 
D) carbon black 
E) carborundum

Question 5

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 6

Of the following,which is most likely to form interstitial carbides?

Accepted Answer

A) active metals 
B) transition metals 
C) boron and silicon 
D) alkaline earth metals 
E) alkali metals 
A) active metals 
B) transition metals 
C) boron and silicon 
D) alkaline earth metals 
E) alkali metals

Question 7

What noble gas is radioactive?

Accepted Answer

The answer of What noble gas is radioactive?...

Question 8

In a proton transfer reaction the weaker a Br∅nsted-Lowry acid the ________ is its conjugate.

Accepted Answer

The answer of In a proton transfer reaction the weaker...

Question 9

Oxides can react with water to form acids or bases.

Accepted Answer

A) True 
 B)False

Question 10

What are the principal components used in making soda-lime glass?

Accepted Answer

calcium ox

Question 11

What is the molecular shape of the SF2 molecule?

Accepted Answer

A) tetrahedral 
B) linear 
C) bent 
D) trigonal planar 
E) trigonal pyramidal 
A) tetrahedral 
B) linear 
C) bent 
D) trigonal planar 
E) trigonal pyramidal

Question 12

Sodium borohydride,NaB   ,is a strong reducing agent because ________.

Accepted Answer

A) Na+ is easily reduced to Na (s) 
B) boron easily changes its oxidation number from +3 to -3 
C) boron is readily oxidized from -3 oxidation state to +3 
D) hydrogen can be easily oxidized from -1 oxidation state to +1 
E) hydrogen is easily reduced from +1 oxidation state to 0 
A) Na+ is easily reduced to Na (s) 
B) boron easily changes its oxidation number from +3 to -3 
C) boron is readily oxidized from -3 oxidation state to +3 
D) hydrogen can be easily oxidized from -1 oxidation state to +1 
E) hydrogen is easily reduced from +1 oxidation state to 0

Question 13

Group 8A elements are all gases at room temperature except for ________.

Accepted Answer

The answer of Group 8A elements are all gases at...

Question 14

The Ostwald process is by which NH3 is converted commercially into ________.

Accepted Answer

A) HNO3 
B) NO 
C) NO2 
D) N2O3 
E) N2O5 
A) HNO3 
B) NO 
C) NO2 
D) N2O3 
E) N2O5

Question 15

The acid and salts of which halogen-oxyanion are the most stable?

Accepted Answer

The answer of The acid and salts of which halogen-oxyanion...

Question 16

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 17

Which halogen can react with fluorine to form the compound XF7?

Accepted Answer

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

Question 18

The molecular shape of the PF3 molecule is ________.

Accepted Answer

A) trigonal pyramidal 
B) trigonal bipyramidal 
C) see-saw 
D) T-shaped 
E) octahedral 
A) trigonal pyramidal 
B) trigonal bipyramidal 
C) see-saw 
D) T-shaped 
E) octahedral

Question 19

Carbon dioxide is produced ________.

Accepted Answer

A) in blast furnaces when metal oxides are reduced with CO 
B) by combustion of carbon-containing substances in an excess of oxygen 
C) when carbonates are heated 
D) by fermentation of sugar during the production of ethanol 
E) by all of the above processes 
A) in blast furnaces when metal oxides are reduced with CO 
B) by combustion of carbon-containing substances in an excess of oxygen 
C) when carbonates are heated 
D) by fermentation of sugar during the production of ethanol 
E) by all of the above processes

Question 20

Briefly explain why carbon and silicon can form oxides with such different physical properties,gaseous CO2 and solid SiO2.

Accepted Answer

Carbon atoms are small enough to form π

Exam 22: Chemistry of the Nonmetals

A borane is a ________.

The most common isotope of hydrogen is sometimes referred to as ________.

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

An example of a form of pure carbon that contains only sp3 hybridized carbon atoms is ________.

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

Of the following,which is most likely to form interstitial carbides?

What noble gas is radioactive?

In a proton transfer reaction the weaker a Br∅nsted-Lowry acid the ________ is its conjugate.

Oxides can react with water to form acids or bases.

What are the principal components used in making soda-lime glass?

What is the molecular shape of the SF2 molecule?

Sodium borohydride,NaB ,is a strong reducing agent because ________.

Group 8A elements are all gases at room temperature except for ________.

The Ostwald process is by which NH3 is converted commercially into ________.

The acid and salts of which halogen-oxyanion are the most stable?

The oxidation state of fluorine in its compounds is ________.

Which halogen can react with fluorine to form the compound XF7?

The molecular shape of the PF3 molecule is ________.

Carbon dioxide is produced ________.

Briefly explain why carbon and silicon can form oxides with such different physical properties,gaseous CO2 and solid SiO2.

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

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

An example of a form of pure carbon that contains only sp³ hybridized carbon atoms is ________.

The arrangement of oxygen atoms around a silicon atom in SiO₄^4- is ________.

What is the molecular shape of the SF₂ molecule?

The Ostwald process is by which NH₃ is converted commercially into ________.

Which halogen can react with fluorine to form the compound XF₇?

The molecular shape of the PF₃ molecule is ________.

Briefly explain why carbon and silicon can form oxides with such different physical properties,gaseous CO₂and solid SiO₂.