Question 1

Which of the following solutions will be the poorest conductor of electrical current?

Accepted Answer

A)  sucrose, C12H22O11(aq) 
B)  sodium chloride, NaCl(aq) 
C)  potassium nitrate, KNO3(aq) 
D)  lithium hydroxide, LiOH(aq) 
E)  sulfuric acid, H2SO4(aq) 
A)  sucrose, C12H22O11(aq) 
B)  sodium chloride, NaCl(aq) 
C)  potassium nitrate, KNO3(aq) 
D)  lithium hydroxide, LiOH(aq) 
E)  sulfuric acid, H2SO4(aq)

Question 2

Select the classification for the following reaction.

Accepted Answer

A)  displacement 
B)  decomposition 
C)  combination 
D)  precipitation 
E)  acid-base 
A)  displacement 
B)  decomposition 
C)  combination 
D)  precipitation 
E)  acid-base

Question 3

Some covalent compounds dissolve in water to produce conducting solutions.

Accepted Answer

A) True 
 B)False

Question 4

Which, if any, of the following properties applies to weak acids?

Accepted Answer

A)  They are strong electrolytes. 
B)  They are excellent conductors of electricity. 
C)  When dissolved in water, they do not ionize completely. 
D)  All of these choices are correct. 
E)  None of these choices is correct. 
A)  They are strong electrolytes. 
B)  They are excellent conductors of electricity. 
C)  When dissolved in water, they do not ionize completely. 
D)  All of these choices are correct. 
E)  None of these choices is correct.

Question 5

Magnesium carbonate, MgCO3, is insoluble. Identify the spectator ions when aqueous solutions of sodium carbonate and magnesium chloride are combined.

Accepted Answer

A)  Mg2+ and CO32¯ 
B)  Na+ and Cl¯ 
C)  Mg2+ and Cl¯ 
D)  Na+ and CO32¯ 
E)  None of these choices correctly identifies the spectator ions. 
A)  Mg2+ and CO32¯ 
B)  Na+ and Cl¯ 
C)  Mg2+ and Cl¯ 
D)  Na+ and CO32¯ 
E)  None of these choices correctly identifies the spectator ions.

Which of the following solutions will be the poorest conductor of electrical current?

Select the classification for the following reaction.

Some covalent compounds dissolve in water to produce conducting solutions.

Which, if any, of the following properties applies to weak acids?

Magnesium carbonate, MgCO₃, is insoluble. Identify the spectator ions when aqueous solutions of sodium carbonate and magnesium chloride are combined.

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Exam 4: Three Major Classes of Chemical Reactions

Which of the following solutions will be the poorest conductor of electrical current?

Select the classification for the following reaction.

Some covalent compounds dissolve in water to produce conducting solutions.

Which, if any, of the following properties applies to weak acids?

Magnesium carbonate, MgCO3, is insoluble. Identify the spectator ions when aqueous solutions of sodium carbonate and magnesium chloride are combined.

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Magnesium carbonate, MgCO₃, is insoluble. Identify the spectator ions when aqueous solutions of sodium carbonate and magnesium chloride are combined.