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Acids and Bases Review

Total questions: 63

Worksheet time: 2hrs 37mins

Name
Class
Date
1.
Which describes a base?
a)
Turns blue litmus red
b)
Turns red litmus blue
c)
pH of 7
d)
pH of 3
2.
What does a pH scale do?
a)
Tells you if a substance is an acid.
b)
Tells you if a substance is a base.
c)
Measures the strength or weakness of an acid or base.
d)
All of these are true.
3.
What is the pH of distilled water?
a)
1
b)
4
c)
7
d)
11
4.
Which is an acid?
a)
Turns blue litmus red
b)
Turns red litmus blue
c)
Has a pH of 11
d)
Has a pH of 7
5.
When found in food, acids are ________
a)
Sour
b)
Bitter
c)
Salty
d)
Slippery
6.
When found in food, bases are _______.
a)
Sour
b)
Bitter
c)
Salty
d)
Soggy
7.
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.
8.
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
9.
Drain cleaner has a pH of 13. What is drain cleaner?
a)
An acid.
b)
A strong base.
c)
Neutral.
d)
A weak base.
10.
What are properties of acids?
a)
Bitter, slippery, ph above 7
b)
Sour, reacts with metals, ph below 7
c)
Sour, reacts with metals, ph above 7
d)
Bitter, ph of 7, does not react with metals
11.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
12.

The pH scale is a range from

a)

1 to 7

b)

0 to 14

c)

1 to 14

d)

1 to 20

13.

A very strong acid would have a pH of

a)

1

b)

7

c)

9

d)

14

14.

A weak alkali would have a pH of

a)

8

b)

7

c)

6

d)

14

15.

A solution with a pH of 3.6 would be

a)

acidic

b)

alkaline

c)

neutral

d)

acidic and alkaline

16.

A solution with a pH of 8.6 would be

a)

acidic

b)

alkaline

c)

neutral

d)

acidic and alkaline

17.

A base is a substance

a)

That releases OH- ions when dissolved in water

b)

That releases H+ ions when dissolved in water

c)

Does not release any ions when dissolved in water

d)

None of the above

18.

The picture below shows the relative concentrations of H+ and OH- in a solution. Is the solution an acid or a base?

a)

acid

b)

base

19.

An acid

a)

is a substance that releases H+ ions when dissolved in water

b)

is a substance that does not release any ions when dissolved in water

c)

is a substance that releases OH- when dissolved in water

d)

releases an equal amount of OH- and H+ ions when dissolved in water

20.
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
21.

If a solution has a [H+] of 9.3x10-11, what is the pH?

a)

10.0

b)

4.0

c)

3.5

d)

8.2

22.

What is the equation for calculating pH?

a)

pH = [H+]

b)

pH = log [H+]

c)

pH = -log[OH-]

d)

pH = -log [H+]

23.
If the [H+] of a solution is 6.8 x 10-9 mol/L the pH is
a)
8.17
b)
8.2
c)
9.99
d)
8.62
24.

If the hydronium ion H3O+ concentration is equal to the hydroxide ion OH- concentration, the solution is a(n)

a)

acid

b)

base

c)

salt

d)

neutral solution

25.

The pH of a solution is 8.43. What is the hydronium ion H3O+ concentration?

a)

3.7 x 10-9 M

b)

2.7 x 10-6 M

c)

1.0 x 10-8.43 M

d)

1.0 x 10-14

26.

Which substance listed below is the most acidic ( strongest acid)

a)

coffee= pH of 5

b)

orange juice = pH of 3

c)

ammonia = pH of 11

d)

bleach = pH of 13

27.
This piece of pH paper has been dipped into:
a)
An acid
b)
A base
c)
A pH-neutral substance
d)
A buffer
28.
What might happen if you mixed a strong acid with an equally strong base?
a)
You would see an explosive chemical reaction.
b)
The acid would destroy the base.
c)
The base would destroy the acid.
d)
You'd wind up with a pH-neutral substance.
29.
Feels slippery.
a)
Acids
b)
Bases
c)
All
30.
A neutralization reaction will (almost) always produce...
a)
water & salt
b)
water
c)
salt
d)
water & carbon
31.

A type of chemical that forms solutions that taste sour, due to high concentrations of positive hydrogen ions

a)

acid

b)

base

c)

salt

d)

pH

32.

What is considered to be in the middle of the pH scale

a)

acidic

b)

neutral

c)

basic

d)

indicator

33.
Identify the salt in the following equation:
Zn(OH)2 + HNO3   ---> H2O  + Zn(NO3)2
a)
Zn(OH)2
b)
HNO3
c)
H2O
d)
Zn(NO3)2
34.
In a ____ reaction, an acid and a base produce a salt and a water. 
a)
concentrated
b)
decomposition
c)
dilute
d)
neutralization
35.

Complete the following reaction:

HCl + Mg(OH)2 -->

a)

MgCl2 + H2O

b)

Mg +H2O

c)

MgCl2 + H2

d)

MgCl2 + H2O + CO2

36.

Complete the following reaction:

H3PO4 + NaOH -->

a)

Na3PO4 + H2O

b)

Na +H2O

c)

Na3PO4 + H2

d)

Na3PO4 + H2O + CO2

37.

Complete the following reaction:

HNO3 + Ca(OH)2 -->

a)

Ca(NO3)2 + H2O

b)

Ca +H2O

c)

Ca(NO3)2 + H2

d)

Ca(NO3)2 + H2O + CO2

38.
What is the range of pH values in an acidic solution?
a)
0-7
b)
7-14
c)
15-239058204958
d)
pH = 7
39.
What is the range of pH values in a basic solution?
a)
0-7
b)
7-14
c)
7
40.
The products of a neutralization reaction are acids and bases
a)
True
b)
False
41.
The reactants of a neutralization reaction are acids and bases
a)
True
b)
False
42.
Forms hydroxide ions (OH-) in water
a)
Acids
b)
Bases
c)
All
43.

Predict the products of this reaction.

a)
b)
c)
d)
44.

How can you identify an acid when analyzing a chemical equation?

a)

acid formulas have OH

b)

acid formulas begin with H cations

c)

acid formulas contain at least 1 hydrogen

d)

acid formulas end with OH

45.

How can you identify a base when looking at the chemical formula?

a)

bases contain hydroxide ions

b)

bases contain hydrogen ions

c)

bases do not have ammonia

d)

bases have oxygen in their formula

46.

Which of the following is a binary acid?

a)

H2SO4

b)

HNO3

c)

H2Se

d)

HC2H3O2

47.

When using the Arrhenius model, what types of ions indicate that a compound is a base?

a)

H+1

b)

OH-1

48.

When using the Arrhenius model, what types of ions indicate that a compound is an acid?

a)

H+

b)

OH-1

49.

When using the Bronsted Lowry definition of acids and bases, the acid will ______________ a hydrogen proton.

a)

donate

b)

accept

50.

When using the Bronsted Lowry definition of acids and bases, the base will ______________ a hydrogen proton.

a)

donate

b)

accept

51.

Is the following compound an acid or a base?


HCl

a)

Acid

b)

Base

52.

Is the following compound an acid or a base?


NH4OH

a)

acid

b)

base

53.

Is the following compound an acid or a base?


HI

a)

acid

b)

base

54.

Is the following compound an acid or a base?


H3PO4

a)

acid

b)

base

55.

In the following chemical equation, which compound is the acid?


HCl + NH3 → NH4+ + Cl−

a)

HCl

b)

NH3

c)

NH4+

d)

Cl−

56.

In the following chemical equation, which compound is the base?


HCl + NH3 → NH4+ + Cl−

a)

HCl

b)

NH3

c)

NH4+

d)

Cl−

57.
Select the name of the following acid: HCl
a)
Hydrochloric acid
b)
Chlorous acid
c)
Chloric acid
58.
Select the formula for the following acid: hydroiodic acid
a)
HI
b)
HIO4
c)
HIO3
d)
H2I
59.
Select the name for the following acid: H3PO4
a)
Phosphoric acid
b)
Phosphorous acid
c)
Hydrophosphoric acid
60.
Select the formula for the following acid: Carbonic Acid
a)
H2CO3
b)
HCO3
c)
H4C
61.
Select the name for the following acid: H2SO4
a)
Sulfuric acid
b)
Sulfurous acid
c)
Hydrosulfuric acid
62.
Select the name for the following acid: H2SO3
a)
Sulfurous acid
b)
Sulfuric acid
c)
Hydrosulfuric acid
63.
Select the name for the following acid: H2S
a)
Hydrosulfuric acid
b)
Sulfuric acid
c)
Sulfurous

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