Question 1

What is the difference between ferromagnetism and paramagnetism?

Accepted Answer

When a substance is paramagnetic, it con

Question 2

Which of the following is a general property of a metal?

Accepted Answer

A) high resistivity 
B) good conductor of heat 
C) low boiling point 
D) low melting point 
E) high electronegativity 
A) high resistivity 
B) good conductor of heat 
C) low boiling point 
D) low melting point 
E) high electronegativity

Question 3

What method is used to obtain pure aluminum metal from Al2O3?

Accepted Answer

A) smelting 
B) powder metallurgy 
C) Hall process 
D) leaching 
E) calcination 
A) smelting 
B) powder metallurgy 
C) Hall process 
D) leaching 
E) calcination

Question 4

An interstitial alloy contains carbon in one-fourth of the octahedral holes of a closest-packed metal, M. What is the formula of this alloy?

Accepted Answer

A) M4C 
B) MC4 
C) MC 
D) M2C 
E) MC2 
A) M4C 
B) MC4 
C) MC 
D) M2C 
E) MC2

Question 5

What is the highest oxidation number of chromium?

Accepted Answer

A) +3 
B) +4 
C) +5 
D) +7 
E) +6 
A) +3 
B) +4 
C) +5 
D) +7 
E) +6

Question 6

Hydrometallurgy is

Accepted Answer

A) refining of metal ores using oxidation-reduction reactions. 
B) refining of metal ores using heat. 
C) refining of metal ores using reactions with aqueous solutions. 
D) forming metal parts using heat and small crystals of metal. 
E) forming tiny metal crystals using heat and water spray. 
A) refining of metal ores using oxidation-reduction reactions. 
B) refining of metal ores using heat. 
C) refining of metal ores using reactions with aqueous solutions. 
D) forming metal parts using heat and small crystals of metal. 
E) forming tiny metal crystals using heat and water spray.

Question 7

Match the following.

-Zn

Accepted Answer

A) sphalerite 
B) rhodochrosite 
C) rutile 
D) carnotite 
E) malachite
F)galena
G)cinnabar 
A) sphalerite 
B) rhodochrosite 
C) rutile 
D) carnotite 
E) malachite
F)galena
G)cinnabar

Question 8

Which substance is the best conductor of electricity?

Accepted Answer

A) arsenic 
B) boron 
C) silver 
D) tellurium 
A) arsenic 
B) boron 
C) silver 
D) tellurium

Question 9

Powder metallurgy is

Accepted Answer

A) refining of metal ores using oxidation-reduction reactions. 
B) refining of metal ores using heat. 
C) forming metal parts using electricity. 
D) refining of metal ores using reactions with aqueous solutions. 
E) forming metal parts using heat and small crystals of metal. 
A) refining of metal ores using oxidation-reduction reactions. 
B) refining of metal ores using heat. 
C) forming metal parts using electricity. 
D) refining of metal ores using reactions with aqueous solutions. 
E) forming metal parts using heat and small crystals of metal.

What is the difference between ferromagnetism and paramagnetism?

Which of the following is a general property of a metal?

What method is used to obtain pure aluminum metal from Al₂O₃?

An interstitial alloy contains carbon in one-fourth of the octahedral holes of a closest-packed metal, M. What is the formula of this alloy?

What is the highest oxidation number of chromium?

Hydrometallurgy is

Match the following. -Zn

Which substance is the best conductor of electricity?

Powder metallurgy is

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

Chemistry of the Nonmetals

Transition Metals and Coordination Compounds

Filters

Exam 24: Metals and Metallury

What is the difference between ferromagnetism and paramagnetism?

Which of the following is a general property of a metal?

What method is used to obtain pure aluminum metal from Al2O3?

An interstitial alloy contains carbon in one-fourth of the octahedral holes of a closest-packed metal, M. What is the formula of this alloy?

What is the highest oxidation number of chromium?

Hydrometallurgy is

Match the following. -Zn

Which substance is the best conductor of electricity?

Powder metallurgy is

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

Chemistry of the Nonmetals

Transition Metals and Coordination Compounds

Filters

What method is used to obtain pure aluminum metal from Al₂O₃?