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Acids & Bases Review

Total questions: 24

Worksheet time: 11mins

Name
Class
Date
1.

What happens when an acid and a base are mixed together?

a)

they explode

b)

nothing will happen

c)

a salt & water are formed

d)

a weaker base & stronger acid are formed

2.

A substance that tastes bitter, feels slippery, and turns red litmus paper blue is

a)

acid

b)

base

c)

indicator

d)

solvent

3.

Neutralization is a reaction between a(n)

a)

acid and a base

b)

acid and a metal

c)

base and a salt

d)

salt and water

4.

On the pH scale, which number indicates neutral?

a)

0

b)

1

c)

7

d)

14

5.

Solutions with a pH greater than 7 are called_________.

a)

acids

b)

bases

c)

indicators

d)

neutral

6.

Solutions with a pH lower than 7 are called _____

a)

acids

b)

bases

c)

indicators

d)

neutral

7.

All bases contain:

a)

-OH

b)

Hydrogen

c)

Halogens

8.
The pH measures between 
a)
0 and 10
b)
0 and 7
c)
7 and 14
d)
0 and 14
9.
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
10.

Which is the correct set of acid properties?

a)

sour taste, corrosive, change litmus from red to blue

b)

sour taste, corrosive, change litmus from blue to red

c)

sweet taste, slippery, change litmus from blue to red

d)

sour taste, slippery, change litmus from blue to red

11.
What color does bases turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns blue litmus paper red.
c)
It turns red litmus paper blue.
d)
It turns red litmus paper re
12.
What color does acid turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns red litmus paper blue.
c)
It turns blue litmus paper blue.
d)
It turns blue litmus paper red.
13.
A pH scale is...
a)
A  corrosive substance that says a substance is an acid.
b)
An indicator that tells if a substance is an acid or base. 
c)
A blue litmus paper.
d)
A red litmus paper.
14.

The lower the pH, the greater the concentration of :

a)

OH-

b)

H+

15.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
16.

What is the endpoint of a titration

a)

Where the indicator changes color

b)

Where there is no base

c)

When the all of the base is added

d)

When there is no acid

17.

a solution that resists changes in pH when acid or base is added to it

a)

Buffer

b)

Neutral

c)

pH paper

d)

Water

18.

A method for determining the concentration of an unknown by reacting a solution of known concentration.

a)

Endpoint

b)

Buffer

c)

Titration

d)

Combustion

19.

The point when the moles of H+ ions from the acid equals the moles of OH- ions from the base.

a)

Equivalence Point

b)

Endpoint

c)

Acidic Point

d)

Conjugate Point

20.
Forms hydroxide ions (OH-) in water
a)
Acids
b)
Bases
c)
All
21.
What is the [H+] of a solution if the pH = 5.60?
a)
1.25 x 10-3 M
b)
1.25 x 10-6 M
c)
2.51 x 10-3 M
d)
2.51 x 10-6 M
22.
What is the pOH of a solution where the [OH-] is 7.3 x 10-2 M?
a)
-1.14
b)
2.0
c)
1.14
d)
7.3
23.
What is the pH of a solution if [H+] = 6.0 x 10-10 M?
a)
3.45
b)
6.25
c)
9.22
d)
11.34
24.
If a 25 mL sample of HCl is neutralized by 21.3 mL of 0.78 M Mg(OH)2, what is the molarity of HCl? The balanced equation is:
2HCl + Mg(OH)2 --> MgCl2 + 2HOH
a)
0.00033 M HCl
b)
0.0013 M HCl
c)
0.35 M HCl
d)
1.3 M HCl

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