Question 1

Which of the following accounts for the fact that reactions between ions in solution are usually very fast?

Accepted Answer

A)  Ionic bonds are weak. 
B)  No covalent bonds need to be broken for reaction to occur. 
C)  Reactions between ions are endothermic. 
D)  Reactions between ions are exothermic. 
A)  Ionic bonds are weak. 
B)  No covalent bonds need to be broken for reaction to occur. 
C)  Reactions between ions are endothermic. 
D)  Reactions between ions are exothermic.

Question 2

Consider the following graph.   The graph is based on data collected for the following reaction.
CHS1U1B13S1U1B0COOH(g) + CS1U1B12S1U1B0HS1U1B15S1U1B0OH(g)   CHS1U1B13S1U1B0COOCS1U1B12S1U1B0HS1U1B15S1U1B0(g) + HS1U1B12S1U1B0O(g)
-Which line on the graph could represent the change in concentration of H2O?

Accepted Answer

A)  A 
B)  B 
C)  It is not possible to show the production of water. 
A)  A 
B)  B 
C)  It is not possible to show the production of water.

Question 3

A particular reaction has an equilibrium constant of 1 × 1020. Which of the following best describes the relationship between the equilibrium constant and the reaction rate?

Accepted Answer

A)  Because the equilibrium constant is large the reaction proceeds rapidly. 
B)  There is no relationship between the size of the equilibrium constant and the rate of the reaction. 
C)  Both a and b are true. 
D)  Neither a nor b is true. 
A)  Because the equilibrium constant is large the reaction proceeds rapidly. 
B)  There is no relationship between the size of the equilibrium constant and the rate of the reaction. 
C)  Both a and b are true. 
D)  Neither a nor b is true.

Which of the following accounts for the fact that reactions between ions in solution are usually very fast?

Consider the following graph. The graph is based on data collected for the following reaction. CH₃COOH(g) + C₂H₅OH(g) CH₃COOC₂H₅(g) + H₂O(g) -Which line on the graph could represent the change in concentration of H₂O?

A particular reaction has an equilibrium constant of 1 × 10²⁰. Which of the following best describes the relationship between the equilibrium constant and the reaction rate?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes and Alkynes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

Exam 7: Reaction Rates and Chemical Equilibrium

Which of the following accounts for the fact that reactions between ions in solution are usually very fast?

Consider the following graph. The graph is based on data collected for the following reaction. CH3COOH(g) + C2H5OH(g) CH3COOC2H5(g) + H2O(g) -Which line on the graph could represent the change in concentration of H2O?

A particular reaction has an equilibrium constant of 1 × 1020. Which of the following best describes the relationship between the equilibrium constant and the reaction rate?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes and Alkynes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

Consider the following graph. The graph is based on data collected for the following reaction. CH₃COOH(g) + C₂H₅OH(g) CH₃COOC₂H₅(g) + H₂O(g) -Which line on the graph could represent the change in concentration of H₂O?

A particular reaction has an equilibrium constant of 1 × 10²⁰. Which of the following best describes the relationship between the equilibrium constant and the reaction rate?