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Characteristics of Acids, Bases & Salts

Total questions: 35

Worksheet time: 26mins

Name
Class
Date
1.

A substance that is 3 on the pH scale would be a(n):

a)

acid

b)

base

c)

neutral

d)

solute

2.
Which one of the following is an example of a base?
a)
orange juice
b)
dish soap
c)
vinegar
d)
lemons
3.
Bases are located where on the pH scale?
a)
any number can be a base
b)
below 7
c)
above 7
d)
number 7 is a base
4.
Bleach and oven cleaner are:
a)
strong acids
b)
weak acids
c)
strong bases
d)
weak bases
5.
Which of the following is NOT a characteristic of an acid?
a)
sour taste
b)
corrosive
c)
it feels slippery
d)
it can burn the skin
6.
A substance that is a 10 on the pH scale would be a(n) ____.
a)
acid
b)
neutral
c)
base
d)
indicator
7.
At what location on the pH scale can you find acids?
a)
number 7 on the pH scale is acidic
b)
below 7
c)
above 7
d)
you can find acids all throughout the scale
8.
Which of the following is neutral?
a)
milk
b)
eggs
c)
gummy worms
d)
pure water
9.

Taste bitter

a)

acids

b)

bases

c)

neutral

d)

pH paper

10.

Taste sour

a)

acids

b)

bases

c)

neutral

d)

pH scale

11.

According to the pH scale, which item is more acidic than lemons?

a)

battery

b)

vinegar

c)

milk

d)

blood

12.

According to the pH scale, which item is a stronger base than soap?

a)

baking soda

b)

ammonia solution

c)

tomato

d)

bleach

13.

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

14.

orange juice

a)

acid

b)

base

c)

both an acid and a base

15.

Feels slippery

a)

acid

b)

base

c)

an acid and a base

16.
Which of the following is most likely to be basic:
a)
Lemon juice
b)
Vinegar
c)
Laundry detergent
d)
Coke
17.
Which of these substances is acidic?
a)
tap water
b)
lemon
c)
ammonia
d)
baking soda
18.
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.
19.
An extremely strong base would have a pH of:
a)
1
b)
7
c)
9
d)
14
20.
What property do all three of these common household substances have in common?
a)
they are all basic
b)
they taste sour
c)
they have a pH below 7
d)
they all turn litmus paper red
21.
According to the pH scale, which of the following would be true?
a)
baking soda is a weak base while drain cleaner is a strong base
b)
lemon is a weaker acid than a banana
c)
tomato and soap are acidic
d)
vinegar is less acidic than an apple
22.
The pH of a strong acid would be:
a)
1-2
b)
5-6
c)
8-9
d)
12-13
23.
The pH of a strong base would be:
a)
1-2
b)
5-6
c)
8-9
d)
13-14
24.
The pH of a weak base would be:
a)
1-2
b)
5-6
c)
8-9
d)
12-13
25.
The pH of a weak acid would be:
a)
1-2
b)
5-6
c)
8-9
d)
12-13
26.

Soap

a)

acid

b)

base

c)

an acid and a base

27.
why are acids not stored in metal containers?
a)
because they react with metals
b)
because they hate metals
c)
a and b
d)
none of the above
28.
Acids react with
a)
water to produce bases and salts
b)
salts to produce bases and water
c)
neither bases, salts nor water
d)
bases to produce salts and water
29.

A substance is found to have the following characteristics:


Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water


In what category would the substance be classified?

a)

acid

b)

base

c)

enzyme

d)

fatty acid

30.

Pure water (H2O) has a pH of 7 and would be classified as...

a)

a base

b)

a neutral substance

c)

both an acid and a base

d)

an acid

31.
Which solution would be least likely to carry an electric current?
a)
NaCl
b)
HCl
c)
C6H12O6
d)
CsI
32.
a solute whose water solution conducts electricity is called a(n)
a)
nonconductor
b)
electrolyte
c)
nonelectrolyte
d)
aqueous solution
33.

Which of the following are electrolytes?

a)

Acids

b)

Bases

c)

Salts

d)

All three

34.

What is a characteristic of an electrolyte in water?

a)

Conducts electricity

b)

Changes color

c)

Does not dissolve

d)

Reacts violently

35.

Select ALL of the salts

a)

NaCl

b)

CaBr2

c)

CuCl

d)

C6H12O6

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