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WorksheetsAcids and Bases
Total questions: 43
Worksheet time: 29mins
Name
Class
Date
1.
a solution with a pH of 8
a)
Acid
b)
Base
c)
Neutral
d)
Concentrated
2.
a solution with a higher concentration of hydrogen ions than hydroxide ions
[H+] > [OH-]
[H+] > [OH-]
a)
Acid
b)
Base
c)
Neutral
d)
Distilled Water
3.
You notice your car battery has leaked acid on the ground. What should you do?
a)
Pour water on the spill.
b)
Call the police.
c)
Use baking soda on the spill to neutralize it.
d)
Use vinegar on the spill to lower the pH.
4.
Which of these household chemicals is alkaline?
a)
vinegar
b)
orange juice
c)
soda
d)
bleach
5.
[OH-] > [H+]
a)
acid
b)
base
c)
neutral
d)
isoelectric
6.
solution with a pH of 5
a)
acid
b)
base
c)
neutral
d)
phenolphthalein
7.
A strong base and a strong acid undergo a neutralization reaction. What are the products?
a)
a weak acid and a weak base
b)
carbon dioxide and water
c)
salt and a weak acid
d)
a salt and water
8.
Which of these is an Arrhenius acid?
a)
NaCl
b)
NaOH
c)
H2SO4
d)
CO2
9.
You test a solution with pH paper, and the paper turns blue. The solution is ______.
a)
neutral
b)
an acid
c)
a base
d)
toxic
10.
turns blue litmus red
a)
acid
b)
base
c)
both acids and bases
d)
magic
11.
Which of the following household products is most likely to result in a pH of 3?
a)
bleach
b)
ammonia
c)
pure water
d)
orange juice
12.
conduct electricity
a)
strong acids and bases
b)
acids only
c)
bases only
d)
all solutions
13.
Which one of the following will turn red litmus paper blue?
a)
HCl
b)
HF
c)
NaOH
d)
H2O
14.
Which of the following represents the chemical formula for hydronium?
a)
H2O
b)
H+
c)
H3O+
d)
OH-
15.
What would be considered the weakest base?
a)
8
b)
14
c)
7.8
d)
11.6
16.
What is neutral on the pH scale?
a)
7
b)
14
c)
P shape
d)
D shape
17.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
18.
A solution with a pH of 2 can be increased to a pH above 7 by adding
a)
an acid.
b)
water
c)
a base
d)
hydrogen
19.
If an acid is combined with a base of equal strength, the result will most likely be
a)
a neutral solution.
b)
a stronger acid.
c)
impossible to tell without testing the pH.
d)
a stronger base
20.
What is the pH of a solution if [OH-] = 1.0 x 10-5M?
a)
5.00
b)
7.00
c)
9.00
d)
11.00
21.
This image represents
a)
Neutralization reaction
b)
synthesis
c)
decompostion
d)
single displacement
22.
An organic substance that changes color in the presence of an acid or base
a)
indicator
b)
inhibitor
c)
catalyst
d)
salt
23.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
24.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
25.
Many cleaning solutions are bases. Which of the following is a property of most bases?
a)
feels slippery
b)
white color
c)
can only be liquid
d)
tastes sour
26.
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 _______.
_______ 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
27.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
28.
Which of the following is true about acids and bases?
a)
The lower the pH, the stronger the acid
b)
the higher the pH, the stronger the acid
c)
The lower the pH, the more neutral the acid
d)
The higher the pH, the weaker the base
29.
Pollution causes the pH of rain water fall below 6. What is such type of rain called?
a)
Acid rain
b)
polluted rain
c)
low pH rain
30.
The esophagus is the tube that connects the mouth to the stomach. Heartburn occurs when some of the stomach juices flow backwards up the esophagus. To help relieve heartburn, a person should take medicine that is
a)
neutral
b)
basic
c)
acidic or basic.
acidic or basic.
d)
acidic
31.
Which type of ion does a base produce when it is dissolved in water?
a)
oxide
b)
oxygen
c)
hydrogen
d)
hydroxide
32.
This piece of pH paper has been dipped into:
a)
An acid
b)
A base
c)
A pH-neutral substance
d)
A buffer
33.
Healthy environments for life have a pH closest to:
a)
1
b)
3
c)
7
d)
10
34.
Litmus paper can be used to determine the _______ of a substance.
a)
relative volume
b)
temperature
c)
relative pH
d)
chemical formula
35.
Lemons and pickles taste sour, this property indicates that they are _______________
a)
Acid
b)
Base
c)
Solution
36.
If an NaOH solution has a molarity of 2*10-4, the pH would be
a)
around 4
b)
around 7
c)
around 10
d)
cannot be determined
37.
A neutralization reaction will (almost) always produce...
a)
water & salt
b)
water
c)
salt
d)
water & carbon
38.
Zn(OH)2 is an example of a...
a)
acid
b)
base
c)
salt
39.
H3PO4 is an example of a ...
a)
acid
b)
base
c)
salt
40.
Identify the salt in the following equation:
Zn(OH)2 + HNO3 ---> H2O + Zn(NO3)2
Zn(OH)2 + HNO3 ---> H2O + Zn(NO3)2
a)
Zn(OH)2
b)
HNO3
c)
H2O
d)
Zn(NO3)2
41.
NaCl is a ...
a)
acid
b)
base
c)
salt
d)
water
42.
If the pH of a solution is 5.6 the pOH is
a)
6.5
b)
12.4
c)
8.4
d)
5.6
43.
What is the pH of a 1 x 10-8 M solution of HNO3?
a)
8
b)
6
c)
7
d)
7.5
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