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WorksheetsAcids, Bases, and the pH Scale Practice
Total questions: 50
Worksheet time: 17mins
Name
Class
Date
1.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
2.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
3.
Tastes Sour
a)
Acids
b)
Bases
c)
Salts
d)
All
4.
Feels slippery.
a)
Acids
b)
Bases
c)
All
5.
Forms hydroxide ions in water
a)
Acids
b)
Bases
c)
All
6.
pH less than 7.
a)
Acids
b)
Bases
c)
All
7.
pH greater than 7.
a)
Acids
b)
Bases
c)
All
8.
What is a solution that has an excess of hydroxide (OH-) ions?
a)
pH
b)
acid
c)
neutral
d)
base
9.
Acids are found on the pH scale between which numbers?
a)
0-7
b)
7
c)
7-14
d)
19-42
10.
An acid/base reaction always produces:
a)
H2
b)
H2O
c)
NaCl
d)
H3O+
11.
A sample of pure water is neutral because it contains
a)
some H+ ions.
b)
equal amounts of hydroxide and hydrogen ions.
c)
some hydroxide ions.
d)
only H2O molecules.
12.
BASE + ACID ----> SALT +?
a)
water
b)
oxygen
c)
hydrogen ion
d)
hydroxide ion
13.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
14.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
15.
The pH scale measures ____ and ____
a)
acidity and basic
b)
the temperature
c)
how fun a chemistry quiz is
d)
none of the above
16.
Which is most acidic?
a)
milk
b)
Lemon Juice
c)
bleach
17.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
18.
Which food is the most acidic?
a)
bananas
b)
lemon juice
c)
orange juice
19.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
20.
________ compounds conduct electricity.
a)
Molecular
b)
Ionic
c)
Metallic
d)
Radioactive
21.
When a few spoonfuls of sugar are mixed into a cup of water, sugar is the..
a)
..acid.
b)
...base.
c)
...solvent.
d)
...solute.
22.
In a water solution, how do acids differ from bases?
a)
Acids form hydrogen ions(H+), while bases form hydroxide ions (OH-)
b)
Acids turn litmus blue, while bases turn litmus red.
c)
Acids form salts, but bases do not.
d)
Hydrogen ions (H+)remain dissolved, by hydroxide ions (OH-) do not.
23.
Which of the following would not be used to indicate whether a solution was an acid or a base?
a)
pH Paper
b)
Phenolphthalein Solution
c)
Orange Juice
d)
Universal Indicator
24.
Salt, noodles, and a spice packet were added to water to make dinner. Which of these most likely was the solvent?
a)
Salt
b)
Water
c)
Noodles
d)
Spices
25.
Salt, noodles, and a spice packet were added to water to make dinner. Which of these most likely was the solute?
a)
Salt
b)
Water
c)
Noodles
d)
Spices
26.
Water is called the "universal solvent" because:
a)
All life contains water
b)
It dissolves only a few solutes
c)
It is found everywhere in the universe
d)
It is able to dissolve many different solutes
27.
Sugar, a molecule, separates into positive and negative ions when dissolved in water.
a)
True
b)
False
28.
Ionic and covalent bonds both involve giving, taking, or sharing this part of atom(s).
a)
The nucleus
b)
Protons
c)
Neutrons
d)
Electrons
29.
An ionic compound forms when two or more atoms share their electrons.
a)
True
b)
False
30.
Diluting a strong base will eventually lead to the solution becoming neutral.
a)
True
b)
False
31.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
32.
Which solution releases H+ in solution?
a)
Base
b)
Acid
c)
Buffer
d)
Water
33.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
34.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
35.
HBr is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
36.
LiOH is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
37.
A solution with a pH of 10 is mixed with a solution with a pH of 4. What would the pH of the mixture most likely be?
a)
10
b)
4
c)
40
d)
7
38.
A solution has a pH of 7.0. What would happen to the pH if OH ions were added?
a)
pH would go up
b)
pH would go down
c)
pH would stay the same
d)
None of these
39.
How can a scientist safely tell whether an unknown solution is salt in water or sugar in water?
a)
By tasting the solution
b)
By smelling the solution
c)
By testing the electrical conductivity of the solution
d)
By filtering the solution
40.
In a beaker of concentrated sugar water, pure water is a...
a)
...solute.
b)
...solvent.
c)
...solution.
d)
...supsension.
41.
When a few spoonfuls of sugar are mixed into a cup of water, sugar is the..
a)
..acid.
b)
...base.
c)
...solvent.
d)
...solute.
42.
The products of a neutralization reaction are acids and bases
a)
True
b)
False
43.
Acids are __________, which means they "eat away" at other materials.
a)
transitional metal
b)
alkiline
c)
flammable
d)
corrosive
44.
________ compounds conduct electricity.
a)
Molecular
b)
Ionic
c)
Metallic
d)
Radioactive
45.
Because it will dissolve so many solutes, __________ is called the universal solvent
a)
acetic acid
b)
lime
c)
nutella
d)
water
46.
What is the concentration of a 250g solution that has 50g of solute?
a)
10%
b)
15%
c)
20%
d)
25%
47.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
48.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
49.
An acid/base reaction always produces:
a)
H2
b)
H2O
c)
NaCl
d)
H3O+
50.
The pH scale measures ____ and ____
a)
pH level
b)
the temperature
c)
how fun a chemistry quiz is
d)
none of the above
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