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WorksheetsAcids and Bases Introduction
Total questions: 15
Worksheet time: 13mins
Name
Class
Date
1.
HF
a)
flouric acid
b)
hydrofluoric acid
c)
fluorate acid
d)
hydrogen fluoridic acid
2.
What is the formula for nitric acid?
a)
HNO2
b)
HNO3
c)
HNO4
d)
H2NO3
3.
What is neutral on the pH scale?
a)
7
b)
14
c)
P shape
d)
D shape
4.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
5.
Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
a)
Acids; pH less than 7
b)
Acids; pH greater than 7
c)
Bases; pH greater than 7
d)
Bases; pH less than 7
6.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
7.
Many cleaning solutions are bases. Which of the following is a property of most bases?
a)
feels slippery
b)
white color
c)
can only be liquid
d)
tastes sour
8.
The Acid-Base classification system that defined acids as those that release H+ and bases as release OH- is known as ________.
a)
Bronsted-Lowry
b)
Arrhenius acid-base
c)
Lewis acid-base
d)
Monoprotic and Polyprotic Acids
9.
The Acid-Base classification system that defined any chemical species that accepts a pair of electrons as a _______, and a _________ is a chemical species that donates a pair of electrons.
a)
Bronsted-Lowry
b)
Arrhenius acid-base
c)
Lewis acid-base
d)
Monoprotic and Polyprotic Acids
10.
The Acid-Base classification system that defined a __________ is any compound that can donate a proton (an H+ ion) to an appropriate acceptor. A _________ is a compound that can remove (or accept) a proton.
a)
Bronsted-Lowry
b)
Arrhenius acid-base
c)
Lewis acid-base
d)
Monoprotic and Polyprotic Acids
11.
In the reaction below, H2SO3 is a(n):
H2SO3 + H2O --> H3O+ + HSO3-
H2SO3 + H2O --> H3O+ + HSO3-
a)
base
b)
acid
c)
conjugate acid
d)
conjugate base
12.
In the reaction HCl + H2O --> H3O+ + Cl-, what is the conjugate acid?
a)
HCl
b)
H2O
c)
H3O+
d)
Cl-
13.
What is the conjugate acid to NO3- ? (HINT...acids contain what ion?)
a)
HNO3
b)
OH-
c)
H+
d)
NO3-2
14.
In this reaction...
CH3NH2 + H2O --> CH3NH3+ + OH-
CH3NH2 can be classified as which of the following? (HINT...follow the H+!!!)
CH3NH2 + H2O --> CH3NH3+ + OH-
CH3NH2 can be classified as which of the following? (HINT...follow the H+!!!)
a)
A Brønsted-Lowry base
b)
A Brønsted-Lowry acid
c)
A Lewis acid
d)
An Arrhenius acid
15.
NaOH is:
a)
an Arrhenius base
b)
an Arrhenius acid
c)
neither an acid nor a base
d)
both an acid and a base
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