Question 1

When a nickel-cadmium battery is recharged, the following reaction occurs. What mass in grams of nickel(II) hydroxide is consumed if 2.40 g of Cd is produced?

Accepted Answer

3.96 g

Question 2

Consider the following energy diagram showing a reaction with and without a catalyst. .   Fill in the blank with the appropriate letter (A, B, C, etc.).
-The heat of reaction would be represented by _____________________.

Accepted Answer

A
a

Question 3

Consider the following image.           This is a representation of a chemical reaction.

Accepted Answer

A) True 
 B)False  True

Question 4

The following reaction could be classified as a combustion reaction. 2Al2O3 (s) → 4Al(s) + 3O2(g)

Accepted Answer

A) True 
 B)False

Question 5

Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is: C2H4(g) + H2O(g) → C2H5OH(l)
If water is present in excess, how many grams of ethanol can be produced from 5.75 g of ethylene?

Accepted Answer

A)  265 g 
B)  0.205 g 
C)  3.50 g 
D)  9.44 g 
A)  265 g 
B)  0.205 g 
C)  3.50 g 
D)  9.44 g

Question 6

Many molecular collisions do not result in chemical reaction. Which of the following explains this observation?

Accepted Answer

A)  The colliding molecules may not be the correct chemicals. 
B)  The colliding molecules do not have sufficient energy. 
C)  The colliding molecules do not have the correct orientations. 
D)  All of the above are potential factors. 
A)  The colliding molecules may not be the correct chemicals. 
B)  The colliding molecules do not have sufficient energy. 
C)  The colliding molecules do not have the correct orientations. 
D)  All of the above are potential factors.

Question 7

Which of the following the appropriate ending for the name of many aromatic compounds?

Accepted Answer

A)  benzene 
B)  ane 
C)  yne 
D)  ene 
A)  benzene 
B)  ane 
C)  yne 
D)  ene

Question 8

Complete each of the following sentences using one of the terms listed below.
 physical change
chemical change
reactant
product
coefficient
physical state
-Consider the image below. In the balanced chemical equation hydrogen would be written as H2(g) where the parenthetical designation represents its________________.

Accepted Answer

Question 9

Which of the following is a physical property of matter?

Accepted Answer

A)  does not burn. 
B)  produces a gas when placed in an acid 
C)  freezes at −10°F 
D)  the surface of a solid turns black in air 
A)  does not burn. 
B)  produces a gas when placed in an acid 
C)  freezes at −10°F 
D)  the surface of a solid turns black in air

Question 10

Consider the following energy diagram showing a reaction with and without a catalyst. .   Fill in the blank with the appropriate letter (A, B, C, etc.).
-The lowering of the activation energy by the catalyst is represented by__________________.

Accepted Answer

The answer of Consider the following energy diagram showing a...

Question 11

Based on the following energy diagram, the activation energy for the reaction represented is approximately 40 kcal.

Accepted Answer

A) True 
 B)False

Question 12

Reactions that have a low energy of activation tend to proceed at a faster rate.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following statements is not true about the reaction as written below?

Accepted Answer

A)  Hydrogen is a reactant. 
B)  C2H4 is a reactant. 
C)  The reaction is balanced. 
D)  The reaction is at equilibrium. 
A)  Hydrogen is a reactant. 
B)  C2H4 is a reactant. 
C)  The reaction is balanced. 
D)  The reaction is at equilibrium.

Question 14

Which of the following will influence all reaction rates?

Accepted Answer

A)  the presence of catalysts 
B)  the temperature of reactants 
C)  the concentration of reactants 
D)  More than one response is correct. 
A)  the presence of catalysts 
B)  the temperature of reactants 
C)  the concentration of reactants 
D)  More than one response is correct.

Question 15

When you perspire, your body is cooled because the evaporation of moisture from you skin is an exothermic process.

Accepted Answer

A) True 
 B)False

Question 16

Copper reacts with nitric acid as given in the following reaction.   Predict the effect of the given change on the rate of the reaction by filling in the blank with one of the following terms. 
increase
decrease
no effect
-The concentration of the nitric acid is increased. ______________________

Accepted Answer

The answer of Copper reacts with nitric acid as given...

Question 17

Based on the following energy diagram, the heat of reaction for the reaction represented is approximately 20 kcal.

Accepted Answer

A) True 
 B)False

Question 18

Consider the following reaction. NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) If 25.0 mL of a 0.100 M solution of NaOH reacted with excess HCl, how many moles of NaCl could form?

Accepted Answer

A)  25.0 mol 
B)  0.100 mol 
C)  0.00250 mol 
D)  2.50 mol 
A)  25.0 mol 
B)  0.100 mol 
C)  0.00250 mol 
D)  2.50 mol

Question 19

The Haber Process is a method for the production of ammonia, an important chemical intermediate. The reaction for this process is: N2 + 3H2 → 2NH3
When the equation is correctly interpreted in terms of moles, how many moles of H2 will react with one mole of N2?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  6 
A)  1 
B)  2 
C)  3 
D)  6

Question 20

The process that converts the energy stored in molecules to a form usable by an animal is respiration.

Accepted Answer

A) True 
 B)False

When a nickel-cadmium battery is recharged, the following reaction occurs. What mass in grams of nickel(II) hydroxide is consumed if 2.40 g of Cd is produced?

Consider the following energy diagram showing a reaction with and without a catalyst. . Fill in the blank with the appropriate letter (A, B, C, etc.). -The heat of reaction would be represented by _____________________.

Consider the following image. This is a representation of a chemical reaction.

The following reaction could be classified as a combustion reaction. 2Al₂O₃ (s) → 4Al(s) + 3O₂(g)

Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is: C₂H₄(g) + H₂O(g) → C₂H₅OH(l) If water is present in excess, how many grams of ethanol can be produced from 5.75 g of ethylene?

Many molecular collisions do not result in chemical reaction. Which of the following explains this observation?

Which of the following the appropriate ending for the name of many aromatic compounds?

Which of the following is a physical property of matter?

Consider the following energy diagram showing a reaction with and without a catalyst. . Fill in the blank with the appropriate letter (A, B, C, etc.). -The lowering of the activation energy by the catalyst is represented by__________________.

Based on the following energy diagram, the activation energy for the reaction represented is approximately 40 kcal.

Reactions that have a low energy of activation tend to proceed at a faster rate.

Which of the following statements is not true about the reaction as written below?

Which of the following will influence all reaction rates?

When you perspire, your body is cooled because the evaporation of moisture from you skin is an exothermic process.

Copper reacts with nitric acid as given in the following reaction. Predict the effect of the given change on the rate of the reaction by filling in the blank with one of the following terms. increase decrease no effect -The concentration of the nitric acid is increased. ______________________

Based on the following energy diagram, the heat of reaction for the reaction represented is approximately 20 kcal.

Consider the following reaction. NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l) If 25.0 mL of a 0.100 M solution of NaOH reacted with excess HCl, how many moles of NaCl could form?

The Haber Process is a method for the production of ammonia, an important chemical intermediate. The reaction for this process is: N₂ + 3H₂ → 2NH₃ When the equation is correctly interpreted in terms of moles, how many moles of H₂ will react with one mole of N₂?

The process that converts the energy stored in molecules to a form usable by an animal is respiration.

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Energy and Physical Properties

Solution Concentration

Acids and Bases

Nuclear Chemistry

Hydrocarbons: an Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

Exam 6: Chemical Reactions

When a nickel-cadmium battery is recharged, the following reaction occurs. What mass in grams of nickel(II) hydroxide is consumed if 2.40 g of Cd is produced?

Consider the following energy diagram showing a reaction with and without a catalyst. . Fill in the blank with the appropriate letter (A, B, C, etc.). -The heat of reaction would be represented by _____________________.

Consider the following image. This is a representation of a chemical reaction.

The following reaction could be classified as a combustion reaction. 2Al2O3 (s) → 4Al(s) + 3O2(g)

Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is: C2H4(g) + H2O(g) → C2H5OH(l) If water is present in excess, how many grams of ethanol can be produced from 5.75 g of ethylene?

Many molecular collisions do not result in chemical reaction. Which of the following explains this observation?

Which of the following the appropriate ending for the name of many aromatic compounds?

Which of the following is a physical property of matter?

Consider the following energy diagram showing a reaction with and without a catalyst. . Fill in the blank with the appropriate letter (A, B, C, etc.). -The lowering of the activation energy by the catalyst is represented by__________________.

Based on the following energy diagram, the activation energy for the reaction represented is approximately 40 kcal.

Reactions that have a low energy of activation tend to proceed at a faster rate.

Which of the following statements is not true about the reaction as written below?

Which of the following will influence all reaction rates?

When you perspire, your body is cooled because the evaporation of moisture from you skin is an exothermic process.

Copper reacts with nitric acid as given in the following reaction. Predict the effect of the given change on the rate of the reaction by filling in the blank with one of the following terms. increase decrease no effect -The concentration of the nitric acid is increased. ______________________

Based on the following energy diagram, the heat of reaction for the reaction represented is approximately 20 kcal.

Consider the following reaction. NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) If 25.0 mL of a 0.100 M solution of NaOH reacted with excess HCl, how many moles of NaCl could form?

The Haber Process is a method for the production of ammonia, an important chemical intermediate. The reaction for this process is: N2 + 3H2 → 2NH3 When the equation is correctly interpreted in terms of moles, how many moles of H2 will react with one mole of N2?

The process that converts the energy stored in molecules to a form usable by an animal is respiration.

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Energy and Physical Properties

Solution Concentration

Acids and Bases

Nuclear Chemistry

Hydrocarbons: an Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

The following reaction could be classified as a combustion reaction. 2Al₂O₃ (s) → 4Al(s) + 3O₂(g)

Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is: C₂H₄(g) + H₂O(g) → C₂H₅OH(l) If water is present in excess, how many grams of ethanol can be produced from 5.75 g of ethylene?

Consider the following reaction. NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l) If 25.0 mL of a 0.100 M solution of NaOH reacted with excess HCl, how many moles of NaCl could form?

The Haber Process is a method for the production of ammonia, an important chemical intermediate. The reaction for this process is: N₂ + 3H₂ → 2NH₃ When the equation is correctly interpreted in terms of moles, how many moles of H₂ will react with one mole of N₂?