Question 1

The compound CH3NH2 reacts with water to form CH3NH3+ and OH-. In this reaction, CH3NH2 is acting as a(n)

Accepted Answer

A)  acid. 
B)  base. 
C)  salt. 
D)  catalyst. 
A)  acid. 
B)  base. 
C)  salt. 
D)  catalyst.

Question 2

Identify the weakly basic solution.

Accepted Answer

A)  urine 
B)  milk of magnesia 
C)  saliva 
D)  milk 
A)  urine 
B)  milk of magnesia 
C)  saliva 
D)  milk

Question 3

The production of biodiesel fuel and of soap both require the addition of base and both produce glycerol.

Accepted Answer

A) True 
 B)False

Question 4

The same number of moles of acetic acid and hydrogen chloride are placed in beakers containing water. After this addition, the beaker with the HCl has more hydronium ions than the beaker with added acetic acid. HCl is classified as

Accepted Answer

A)  a weaker acid than acetic acid. 
B)  a stronger acid than acetic acid. 
C)  equal in acid strength to acetic acid. 
D)  a base. 
A)  a weaker acid than acetic acid. 
B)  a stronger acid than acetic acid. 
C)  equal in acid strength to acetic acid. 
D)  a base.

Question 5

A compound that changes color when it is placed into an acidic or a basic solution is

Accepted Answer

A)  amphiprotic. 
B)  an acid-base indicator. 
C)  a buffer. 
D)  protonated. 
A)  amphiprotic. 
B)  an acid-base indicator. 
C)  a buffer. 
D)  protonated.

Question 6

What base is formed by the addition of potassium oxide to water?

Accepted Answer

A)  KOH 
B)  K2OH 
C)  KH 
D)  KH2 
A)  KOH 
B)  K2OH 
C)  KH 
D)  KH2

Question 7

By definition, acid rain has a pH

Accepted Answer

A)  below 4. 
B)  below 5.6. 
C)  below 7. 
D)  above 8.5. 
A)  below 4. 
B)  below 5.6. 
C)  below 7. 
D)  above 8.5.

Question 8

Lime is used in farming to reduce the acidity of the soil. The chemical name for lime is calcium oxide. When water in the soil reacts with lime, what base is formed? Write the reaction.

Accepted Answer

The answer of Lime is used in farming to reduce...

Question 9

When HCl is added to pure water, HCl molecules lose protons, while water molecules gain protons. In this reaction, HCl is a(n)

Accepted Answer

A)  acid. 
B)  base. 
C)  salt. 
D)  solvent. 
A)  acid. 
B)  base. 
C)  salt. 
D)  solvent.

Question 10

Drain cleaner is an example of a(n)

Accepted Answer

A)  acid. 
B)  base. 
C)  salt. 
D)  neutral compound. 
A)  acid. 
B)  base. 
C)  salt. 
D)  neutral compound.

Question 11

Which of the following is a correct definition of a base that is not dependent upon the solvent?

Accepted Answer

A)  Bases produce hydronium ions. 
B)  Bases are proton donors. 
C)  Bases produce hydroxide ions. 
D)  Bases are proton acceptors. 
A)  Bases produce hydronium ions. 
B)  Bases are proton donors. 
C)  Bases produce hydroxide ions. 
D)  Bases are proton acceptors.

Question 12

Which of the following is a hydroxide ion?

Accepted Answer

A)  OH- 
B)  H+ 
C)  H3O+ 
D)  H2O- 
A)  OH- 
B)  H+ 
C)  H3O+ 
D)  H2O-

Question 13

Hydroiodic acid is classified as a strong acid in water. This means that it produces

Accepted Answer

A)  no hydronium ions. 
B)  a relatively small fraction of the maximum number of possible hydronium ions. 
C)  a relatively large fraction of the maximum number of possible hydronium ions. 
D)  100% of the maximum number of possible hydronium ions. 
A)  no hydronium ions. 
B)  a relatively small fraction of the maximum number of possible hydronium ions. 
C)  a relatively large fraction of the maximum number of possible hydronium ions. 
D)  100% of the maximum number of possible hydronium ions.

Question 14

H3O+ is the

Accepted Answer

A)  hydrate ion. 
B)  hydrogen ion. 
C)  hydroxide ion. 
D)  hydronium ion. 
A)  hydrate ion. 
B)  hydrogen ion. 
C)  hydroxide ion. 
D)  hydronium ion.

Question 15

Phenolphthalein has often been used to monitor the progress of an acid-base neutralization reaction. What color will phenolphthalein be when there is an excess of acid present?

Accepted Answer

A)  colorless 
B)  green 
C)  pink 
D)  yellow 
A)  colorless 
B)  green 
C)  pink 
D)  yellow

Question 16

All of the following are bases EXCEPT

Accepted Answer

A)  KOH. 
B)  HNO3. 
C)  NH3. 
D)  Ba(OH)2. 
A)  KOH. 
B)  HNO3. 
C)  NH3. 
D)  Ba(OH)2.

Question 17

When a metal oxide is added to water, it will form a(n)

Accepted Answer

A)  acid. 
B)  base. 
C)  neutral compound. 
D)  salt. 
A)  acid. 
B)  base. 
C)  neutral compound. 
D)  salt.

Question 18

In the balanced chemical reaction for the neutralization of calcium hydroxide with sulfuric acid, H2SO4, the coefficient of water is

Accepted Answer

A)  4. 
B)  5 
C)  1. 
D)  2. 
A)  4. 
B)  5 
C)  1. 
D)  2.

Question 19

When the pH of the blood is too high, the condition is called

Accepted Answer

A)  acidosis. 
B)  alkalosis. 
C)  hyperacidity. 
D)  anemia. 
A)  acidosis. 
B)  alkalosis. 
C)  hyperacidity. 
D)  anemia.

Question 20

Lithium hydroxide is classified as a strong base in water. This means that it produces

Accepted Answer

A)  no hydroxide ions. 
B)  a relatively small fraction of the maximum number of possible hydroxide ions. 
C)  a relatively large fraction of the maximum number of possible hydroxide ions. 
D)  100% of the maximum number of possible hydroxide ions. 
A)  no hydroxide ions. 
B)  a relatively small fraction of the maximum number of possible hydroxide ions. 
C)  a relatively large fraction of the maximum number of possible hydroxide ions. 
D)  100% of the maximum number of possible hydroxide ions.

Exam 7: Acids and Bases

The compound CH3NH2 reacts with water to form CH3NH3+ and OH-. In this reaction, CH3NH2 is acting as a(n)

Identify the weakly basic solution.

The production of biodiesel fuel and of soap both require the addition of base and both produce glycerol.

The same number of moles of acetic acid and hydrogen chloride are placed in beakers containing water. After this addition, the beaker with the HCl has more hydronium ions than the beaker with added acetic acid. HCl is classified as

A compound that changes color when it is placed into an acidic or a basic solution is

What base is formed by the addition of potassium oxide to water?

By definition, acid rain has a pH

Lime is used in farming to reduce the acidity of the soil. The chemical name for lime is calcium oxide. When water in the soil reacts with lime, what base is formed? Write the reaction.

When HCl is added to pure water, HCl molecules lose protons, while water molecules gain protons. In this reaction, HCl is a(n)

Drain cleaner is an example of a(n)

Which of the following is a correct definition of a base that is not dependent upon the solvent?

Which of the following is a hydroxide ion?

Hydroiodic acid is classified as a strong acid in water. This means that it produces

H3O+ is the

Phenolphthalein has often been used to monitor the progress of an acid-base neutralization reaction. What color will phenolphthalein be when there is an excess of acid present?

All of the following are bases EXCEPT

When a metal oxide is added to water, it will form a(n)

In the balanced chemical reaction for the neutralization of calcium hydroxide with sulfuric acid, H2SO4, the coefficient of water is

When the pH of the blood is too high, the condition is called

Lithium hydroxide is classified as a strong base in water. This means that it produces

Chemistry

Atoms

Atomic Structure

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Energy

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters

The compound CH₃NH₂ reacts with water to form CH₃NH₃⁺ and OH^-. In this reaction, CH₃NH₂ is acting as a(n)

H₃O⁺ is the

In the balanced chemical reaction for the neutralization of calcium hydroxide with sulfuric acid, H₂SO₄, the coefficient of water is