WorksheetsAcids and Bases
Total questions: 49
Worksheet time: 2hrs 29mins
Name
Class
Date
1.
In the reaction below, H2SO3 is a(n):
H2SO3 + NaHCO3 --> H2CO3 + NaHSO3
H2SO3 + NaHCO3 --> H2CO3 + NaHSO3
a)
base
b)
acid
c)
conjugate acid
d)
conjugate base
2.
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
3.
Changes the color of indicators.
a)
Acids
b)
Bases
c)
All
4.
A substance that can act as both an acid and a base is:
a)
Polyprotic
b)
Neutral
c)
Anhydrous
d)
Amphoteric
5.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
6.
If the pH of a solution is 9, it is a....
a)
acid
b)
base
c)
both
d)
none
7.
Forms hydroxide ions (OH-) in water
a)
Acids
b)
Bases
c)
All
8.
pH less than 7.
a)
Acids
b)
Bases
c)
All
9.
Which of the following is most likely to be basic:
a)
Lemon juice
b)
Vinegar
c)
Laundry detergent
d)
Coke
10.
Turns litmus blue.
a)
Acids
b)
Bases
c)
Salts
d)
All
11.
Which range of numbers represent basic solution?
a)
0-6
b)
7
c)
8-14
d)
3-9
12.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
13.
Electrolyte
a)
Acids
b)
Bases
c)
Salts
d)
All
14.
Feels slippery.
a)
Acids
b)
Bases
c)
All
15.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
16.
A strong acid:
a)
completely dissociates in water
b)
partly dissociates in water
c)
doesn't dissociate in water
d)
has a really high pH
17.
A ___ ionizes almost completely in solution.
a)
weak acid
b)
strong acid
c)
weak base
d)
neutral solution
18.
If the pH of a solution is 3, the OH- ion concentration would be
a)
10^-3
b)
10^-10
c)
10^-11
d)
10^-14
19.
What is the conjugate base of C5H5NH+?
a)
C5H5N-
b)
C5H5NH
c)
C5H5N+
d)
C5H5N
20.
In the reaction HC2H3O2 + H2O -----> H3O+ + C2H3O2-, the conjugate base of H3O+ is
a)
H2O
b)
HC2H3O2
c)
C2H3O2-
d)
not shown
21.
What is the conjugate acid of HCO3-?
a)
CO3-
b)
H2CO3
c)
H2O
d)
H+
22.
In the reaction HF + H20 ----> H3O+ + F-, the two acids are
a)
HF and H2O
b)
HF and H3O+
c)
HF and F-
d)
H2O and F-
23.
Which of the following do NOT represent a conjugate acid/base pair?
a)
H3O+/H2O
b)
H2O/OH-
c)
H2CO3/CO3-2
d)
all are conjugate pairs
24.
A conjugate acid is the species that
a)
remains after a base has given up a proton
b)
is formed by the addition of a proton to a base
c)
is formed by the addition of a proton to an acid
d)
remains after an acid has given up a proton
25.
A strong acid:
a)
completely dissociates in water
b)
partly dissociates in water
c)
doesn't dissociate in water
d)
has a really high pH
26.
What is the approximate pH of seawater?
a)
2
b)
5
c)
7
d)
9
27.
Name the correct definition of an acid and a base: An acid ionizes to yield hydrogen ions (H+) in aqueous solution; a base ionizes to yield hydroxide ions (OH–) in aqueous solution.
a)
Lewis definition
b)
Arrhenius definition
c)
Bronstead-Lowry definition
d)
Jill Thompson definition
28.
Who defined an acid as an electron-pair acceptor and a base as an electron-pair donor?
a)
Arrhenius
b)
Bronstead and Lowry
c)
Lewis
d)
Prince... too soon?
29.
Determine whether the following acid is monoprotic, diprotic, or triprotic:
HCl
HCl
a)
monoprotic
b)
diprotic
c)
triprotic
d)
huh
30.
What is the formula for phosphoric acid?
a)
H2PO3
b)
H3PO4
c)
HPO2
d)
HPO4
31.
HI would have the name:
a)
Iodic acid
b)
Iodous acid
c)
Hydroiodic acid
d)
Hypoiodous acid
32.
In the reaction HCl + H2O --> H3O+ + Cl-, what is the conjugate acid?
a)
HCl
b)
H2O
c)
H3O+
d)
Cl-
33.
A substance that conducts electricity when dissolved in water is called a(n):
a)
Electrolyte
b)
Crystalloid
c)
Conductor
d)
Insulator
34.
The name of Ba(OH)2 is:
a)
Barionic acid
b)
Baroihydroxic acid
c)
Barium hydroxide
d)
Boron soup
35.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
36.
Turns litmus blue.
a)
Acids
b)
Bases
c)
Salts
d)
All
37.
Which is most acidic?
a)
milk
b)
Lemon Juice
c)
bleach
38.
The pH scale measures ____ and ____
a)
acidity and basic
b)
the temperature
c)
how fun a chemistry quiz is
d)
none of the above
39.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
40.
This image represents
a)
Neutralization reaction
b)
synthesis
c)
decompostion
d)
single displacement
41.
An organic substance that changes color in the presence of an acid or base
a)
indicator
b)
inhibitor
c)
catalyst
d)
salt
42.
Ca(OH)2
a)
calcium hydroxide (base)
b)
calcium oxygen hydrogen
c)
calcium oxide
43.
What primarily dtermines the pH of a solution?
a)
solubility of a solute
b)
Hydrogen ion (H+) concentration
c)
temperature of the solution
44.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
45.
Which food is the most acidic?
a)
bananas
b)
lemon juice
c)
orange juice
46.
Which statement is NOT true about acids?
a)
conduct electricity well
b)
turn red litmus paper blue
c)
ionize completely in water
47.
Name HF
a)
hydrofluoric acid
b)
Hypofluoric acid
c)
hydrogen fluorine acid
48.
HNO2
a)
hydronitrogen
b)
hydrogen nitrogen oxygen
c)
nitrous acid
49.
NaOH
a)
sodium oxide
b)
sodium hydrogen
c)
sodium hydroxide
100 %
