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Unit 5 Physical Science - Acid Base

Total questions: 24

Worksheet time: 10mins

Name
Class
Date
1.

pH number 3

a)

Acid

b)

Base

c)

Neutral

2.

pH number 7

a)

Acid

b)

Base

c)

Neutral

3.

pH number 14

a)

Acid

b)

Base

c)

Neutral

4.

Turns red litmus paper blue

a)

Acid

b)

Base

c)

Neutral

5.

Turns blue litmus paper red

a)

Acid

b)

Base

c)

Neutral

6.

Water is:

a)

Acid

b)

Base

c)

Neutral

7.

Sodium hydroxide is:

a)

Acid

b)

Base

c)

Neutral

8.

H2SO4 is:

a)

Acid

b)

Base

c)

Neutral

9.

Has more OH- ions than H+ ions

a)

Acid

b)

Base

c)

Neutral

10.

Has more H+ ions than OH- ions

a)

Acid

b)

Neutral

c)

Base

11.

The table shows the pH of several solutions. Which solution is the most acidic?

a)

vinegar

b)

milk

c)

water

d)

bleach

12.

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?

a)

lemon juice, milk, baking soda, bleach

b)

bleach, baking soda, milk, lemon juice

c)

milk, lemon juice, baking soda, bleach

d)

baking soda, bleach, lemon juice, milk

13.
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
14.

The pH scale is used to know what?

a)

Your temperature

b)

Know one knows

c)

The colors of acids and bases

d)

The strength of acids and bases

15.

Which one of the following is NOT a property of acids.

a)

Tastes sour

b)

Corrodes metals

c)

Conduct electricity

d)

Turns red litmus paper blue

16.

Which one of the following is NOT a property of basic solutions?

a)

Feels soapy/slippery

b)

Tastes sour

c)

Conducts electricity

d)

Turns red litmus paper blue

17.

Which of the following is an acid ?

a)

Shampoo

b)

Baking soda

c)

Orange juice

d)

Water

18.
Strong acids and bases...
a)

do not dissociate (breakdown) into ions

creates few ions

b)

partially dissociate (breakdown) into ions

c)

completely dissociate (breakdown) into ions

creates many ions

19.

Hydrochloric (HCl) is a

a)

Weak Acid

b)

Weak Base

c)

Strong Acid

d)

Strong base

20.

The products of a neutralization reaction are ____ and _____.

a)

acid

b)

salt

c)

water

d)

base

21.

What is the equation for calculating pH?

a)

pH = [H+]

b)

pH = log [H+]

c)

pH = -log[OH-]

d)

pH = -log [H+]

22.

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

23.

If a solution has a [OH-] of 2.3x10-4, it must be a(n)...

a)

Acid

b)

Base

c)

Neutral

24.
If the pH of a solution is 5.6 the pOH is
a)
6.5
b)
12.4
c)
8.4
d)
5.6