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Worksheets

Acids and Bases

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.
An indicator will ______________ when it is in contact with an acid or base
a)
Bubble
b)
Form a new substance
c)
Change color
d)
Stay the same color
2.

Which of the following is a property of a base?

a)

bitter taste

b)

reacts with metals

c)

salty

d)

sour taste

3.

Milk is a very weak acid. What might its pH value be?

a)

6.5

b)

7.8

c)

4.2

d)

12.2

4.

What completely ionizes in solution?

a)

Weak acids

b)

Strong acids

c)

Strong Salts

d)

Neutral salts

5.

What is a titration?

a)

when the moles of hydrogen ions is equal to the moles of hydroxide ions

b)

adding a known amount of solution of known concentration to determine the concentration of an unknown

c)

reaction in which an acid and a base react in an aqueous solution to produce a salt and water

d)

the extent of ionization of an acid or base

6.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
7.
Releases hydrogen in an aqueous solution.
a)
base
b)
strong base
c)
acid
d)
weak base
8.

HF is...

a)

an acid

b)

a base

c)

a salt

d)

an ionic compound

9.
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 _______.
a)
Acids; pH less than 7
b)
Acids; pH greater than 7
c)
Bases; pH greater than 7
d)
Bases; pH less than 7
10.
Which type of ion does a base produce when it is dissolved in water?
a)
oxide
b)
oxygen
c)
hydrogen
d)
hydroxide
11.

An Arrhenius base:

a)

donates H+

b)

accepts H+

c)

produces H+

d)

produces OH-

12.

An Arrhenius acid:

a)

donates H+ to another substance

b)

accepts H+ from another substance

c)

produces H+

d)

produces OH-

13.

A Bronsted Lowry base:

a)

donates H+ to another substance

b)

accepts H+ from another substance

c)

produces H+

d)

produces OH-

14.
The Acid-Base classification system that defined __________ 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
15.

pH is the measure of the concentration of ______.

a)

Acids

b)

H+ ion

c)

OH- ion

d)

Bases