Question 1

Which of these pairs of elements would be most likely to form an ionic compound?

Accepted Answer

A)  P and Br 
B)  Cu and K 
C)  C and O 
D)  O and Zn 
E)  Al and Rb 
A)  P and Br 
B)  Cu and K 
C)  C and O 
D)  O and Zn 
E)  Al and Rb

Question 2

Iron(III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes. What is its formula?

Accepted Answer

A)  Fe(Cl·6H2O)3 
B)  Fe3Cl·6H2O 
C)  FeCl3(H2O)6 
D)  Fe3Cl(H2O)6 
E)  FeCl3·6H2O 
A)  Fe(Cl·6H2O)3 
B)  Fe3Cl·6H2O 
C)  FeCl3(H2O)6 
D)  Fe3Cl(H2O)6 
E)  FeCl3·6H2O

Question 3

Which of the following is a metalloid?

Accepted Answer

A)  Carbon, C, Z = 6 
B)  Sulfur, S, Z = 16 
C)  Germanium, Ge, Z = 32 
D)  Iridium, Ir, Z = 77 
E)  Bromine, Br, Z = 35 
A)  Carbon, C, Z = 6 
B)  Sulfur, S, Z = 16 
C)  Germanium, Ge, Z = 32 
D)  Iridium, Ir, Z = 77 
E)  Bromine, Br, Z = 35

Question 4

The fact that the complete reaction of 48.6 g of magnesium with 32.0 g of oxygen forms exactly 80.6 g of magnesium oxide illustrates

Accepted Answer

A)  the law of definite proportions. 
B)  the law of conservation of mass. 
C)  the law of multiple proportions. 
D)  Dalton's description of the atom. 
A)  the law of definite proportions. 
B)  the law of conservation of mass. 
C)  the law of multiple proportions. 
D)  Dalton's description of the atom.

Which of these pairs of elements would be most likely to form an ionic compound?

Iron(III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes. What is its formula?

Which of the following is a metalloid?

The fact that the complete reaction of 48.6 g of magnesium with 32.0 g of oxygen forms exactly 80.6 g of magnesium oxide illustrates

Chemistry: the Central Science

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

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Exam 2: Atoms, Molecules, and Ions

Which of these pairs of elements would be most likely to form an ionic compound?

Iron(III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes. What is its formula?

Which of the following is a metalloid?

The fact that the complete reaction of 48.6 g of magnesium with 32.0 g of oxygen forms exactly 80.6 g of magnesium oxide illustrates

Chemistry: the Central Science

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters