Acids and Bases

1
Acids and Bases

• Clicker Review

2
One physical property of acids is a ______.

• Slippery feel
• Pink color
• Sour taste
• Presence of hydrogen

3
Acids react with carbonates to produce _____.

• Hydrogen
• A base
• A hydronium ion
• Carbon Dioxide

4
The top industrial chemical produced in the
United States for many years has been ______.

• Sulfuric acid
• Ammonia
• Hydrochloric acid
• Oxygen

5
An example of a polyprotic acid is

• HCl
• HC2H3O2
• H2SO4
• HCN

6
A piece of blue litmus paper placed into water
through which carbon dioxide gas is bubbled will
_____.

• Turn pink
• Remain blue
• Show no change
• Lose its color

7
Oxides of nitrogen and sulfur are

• acids
• bases
• acidic anhydrides
• basic anhydrides

8
The weak acid in the following list is ____.

• Hydrochloric acid
• Sulfuric acid
• Nitric acid
• Acetic acid

9
An acidic solution would have a pH of

• Less than 7
• More than 7
• 7 or above
• 7 or below

10
Acids produce _____ in order to conduct
electricity in water.

• HCl
• H2O
• H3O
• OH-

11
In a laboratory situation, the best way to
determine if a substance is an acid or a base is
to

• Taste the substance
• Touch the substance
• Test the substance with litmus paper
• Dilute the substance with excess water

12
In a neutralization reaction

• The base in the reaction is neutralized
• The acid in the reaction is neutralized
• A salt is formed
• All of the other answer

13
Which of the following is true?

• Water is a good conductor of electricity
• A solution that contains electrolytes conducts
  electricity
• A water solution of an acid will not conduct
  electricity
• A water solution of an base will not conduct
  electricity

14
H3O units are called

• Hydroxide ions
• Hydronium ions
• Hydroxyl groups
• Hydrogen ions

15
A substance that produces H3O ions in solution is

• An acid
• A salt
• A base
• An soap

16
A substance that produces OH- ions in solution is

• An acid
• A Salt
• A base
• An Alcohol

17
When the acidity of a substance is determined by
the hydronium ion concentration, the _____ of the
substance is being calculated

• saponification
• ester
• pH
• oxide

18
Organic substances that change color in the
presence of an acid or base are called

• ions
• anhydrates
• hydrates
• indicators

19
Compound(s) formed during a neutralization
reaction is (are)

• soaps
• esters
• salt
• salt and water

20
Which of the following is the best indicator of
the number of hydronium ions in a solution?

• The pH of the solution
• The mass of the solution
• The color of the solution in the presence of an
  indicator
• The amount of water in the solution

21
A solution with a bitter taste and a slippery
feel is most likely

• An acid
• A base
• A hydrate
• An Anhydride

22
HCL is the formula for

• The hydronium ion
• Hydrochloric acid
• Hydrogen peroxide
• Perchlorate acid

23
The terms "dilute" and "concentrated" refer to
the

• concentration
• strength
• pH of a solution
• acidity

24
The strength of a base that only partly
disassociates in solution would be described as

• dilute
• concentrated
• weak
• strong

25
A reaction between an acid and a base that
produces a salt and water is a ______ reaction.

• neutralization
• synthesis
• decomposition
• saponification

26
The only weak acid listed below is

• HCl
• HClO4
• H2SO4
• H2S

27
The only weak base listed below is

• NaOH
• HgOH
• Ba(OH)2
• LiOH

28
The pH of pure water is

• 0
• 1
• 7
• 14

29
The pH most likely to be measured for a strong
base is

• 0
• 5
• 8
• 13

30
When hydrochloric acid is added drop-by-drop to a
solution of sodium hydroxide, the pH of the
mixture

• stays the same
• decreases
• increases
• changes in an irregular way

31
Acids react with carbonates to produce

• Hydrogen
• A base
• A hydronium ion
• Carbon dioxide

32
The effect of an antacid on stomach fluids is to

• Make them neutral
• Make the basic
• Increase their pH
• Decrease their pH

33
The normal pH of blood is about

• 2.5
• 6.6
• 7.0
• 7.4

34
Normal rain is

• Slightly acidic
• Slightly basic
• Neutral
• An ester

35
The pH of a solution that is neither acidic not
basic is

• 0
• 7
• 10
• 14

36
Certain material can act as indicators because
they change

• acidity
• color
• concentration
• taste