Question 1

Determine the number of vertices and faces in the closo-Borane B10H102-.

Accepted Answer

A) vertices = 10, faces = 16 
B) vertices = 5, faces = 6 
C) vertices = 5, faces = 10 
D) vertices = 10, faces = 20 
E) vertices = 20, faces = 36 
A) vertices = 10, faces = 16 
B) vertices = 5, faces = 6 
C) vertices = 5, faces = 10 
D) vertices = 10, faces = 20 
E) vertices = 20, faces = 36

Question 2

Which of the following statements is TRUE?

Accepted Answer

A) Ionic carbides form between carbon and another highly electronegative element. 
B) Carbides are soft materials with low melting points. 
C) Metallic carbides are more malleable than the pure metal. 
D) Covalent carbides are formed between carbon and a nonmetal with low electronegativity. 
E) Carbides can be cationic, anionic, and covalent. 
A) Ionic carbides form between carbon and another highly electronegative element. 
B) Carbides are soft materials with low melting points. 
C) Metallic carbides are more malleable than the pure metal. 
D) Covalent carbides are formed between carbon and a nonmetal with low electronegativity. 
E) Carbides can be cationic, anionic, and covalent.

Question 3

Match the following.

-orthosilicate

Accepted Answer

A) Si2O52- 
B) SiO44- 
C) Si4O116- 
D) SiO32- 
E) Si2O76- 
A) Si2O52- 
B) SiO44- 
C) Si4O116- 
D) SiO32- 
E) Si2O76-

Question 4

Match the following.

-amphibole

Accepted Answer

A) Si2O52- 
B) SiO44- 
C) Si4O116- 
D) SiO32- 
E) Si2O76- 
A) Si2O52- 
B) SiO44- 
C) Si4O116- 
D) SiO32- 
E) Si2O76-

Question 5

Why are phosphate compounds added to detergents?

Accepted Answer

They have the ability to remov

Question 6

Determine the oxidation state of phosphorus in P2O74⁻.

Accepted Answer

A) +5 
B) +4 
C) +3 
D) +7 
E) +2 
A) +5 
B) +4 
C) +3 
D) +7 
E) +2

Question 7

-Refer to the above table. Predict the silicate structure for KAl(SiO3)2.

Accepted Answer

A) phyllosilicate 
B) orthosilicate 
C) amphibole 
D) pyroxene 
E) pyrosilicate 
A) phyllosilicate 
B) orthosilicate 
C) amphibole 
D) pyroxene 
E) pyrosilicate

Question 8

Which of the following statements is TRUE?

Accepted Answer

A) Water and H2S have the same bond angles. 
B) Hydrofluoric acid is a strong reducing agent. 
C) Sulfur is a stronger oxidizing agent than oxygen. 
D) Water is less stable than H2S. 
E) Sulfuric acid is a strong oxidizing agent. 
A) Water and H2S have the same bond angles. 
B) Hydrofluoric acid is a strong reducing agent. 
C) Sulfur is a stronger oxidizing agent than oxygen. 
D) Water is less stable than H2S. 
E) Sulfuric acid is a strong oxidizing agent.

Question 9

Match the following.

-pyrosilicate

Accepted Answer

A) Si2O52- 
B) SiO44- 
C) Si4O116- 
D) SiO32- 
E) Si2O76- 
A) Si2O52- 
B) SiO44- 
C) Si4O116- 
D) SiO32- 
E) Si2O76-

Question 10

What is the name of powdered form of carbon, which is a component of soot?

Accepted Answer

A) diamond 
B) graphite 
C) fullerenes 
D) bucky balls 
E) carbon black 
A) diamond 
B) graphite 
C) fullerenes 
D) bucky balls 
E) carbon black

Determine the number of vertices and faces in the closo-Borane B₁₀H₁₀^2-.

Which of the following statements is TRUE?

Match the following. -orthosilicate

Match the following. -amphibole

Why are phosphate compounds added to detergents?

Determine the oxidation state of phosphorus in P₂O₇⁴⁻.

-Refer to the above table. Predict the silicate structure for KAl(SiO₃)₂.

Which of the following statements is TRUE?

Match the following. -pyrosilicate

What is the name of powdered form of carbon, which is a component of soot?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

Exam 23: Chemistry of the Nonmetals

Determine the number of vertices and faces in the closo-Borane B10H102-.

Which of the following statements is TRUE?

Match the following. -orthosilicate

Match the following. -amphibole

Why are phosphate compounds added to detergents?

Determine the oxidation state of phosphorus in P2O74⁻.

-Refer to the above table. Predict the silicate structure for KAl(SiO3)2.

Which of the following statements is TRUE?

Match the following. -pyrosilicate

What is the name of powdered form of carbon, which is a component of soot?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

Determine the number of vertices and faces in the closo-Borane B₁₀H₁₀^2-.

Determine the oxidation state of phosphorus in P₂O₇⁴⁻.

-Refer to the above table. Predict the silicate structure for KAl(SiO₃)₂.