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WorksheetsHousehold Items Acid Bases
Total questions: 60
Worksheet time: 47mins
Name
Class
Date
1.
Measure of how acidic or basic something is.
a)
aH
b)
bH
c)
pH
d)
Hp
2.
Vinegar is an example of __________
a)
A base
b)
An acid
c)
A neutral substance
3.
Bases are what range on the pH scale?
a)
0-6.99
b)
7
c)
7.1-14
d)
0-14
4.
When found in food, acids are ________
a)
Sour
b)
Bitter
c)
Salty
d)
Slippery
5.
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
6.
What are properties of a base?
a)
Slippery, bitter, does not react with metals, pH above 7.
b)
Slippery, bitter, reacts with metals, pH below 7.
c)
Sour, reacts with metals, pH below 7
d)
Sour, reacts with metals, pH above 7.
7.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
8.
Acids are what range on the pH scale?
a)
0-14
b)
0-6.99
c)
7
d)
7.1-14
9.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
10.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood
11.
Water is neutral because the number of hydrogen and hydroxide ions is _________.
a)
the same
b)
different
12.
Bases release ____________ ions when they break down or dissociate.
a)
Hydrogen (H+)
b)
Hydroxide (OH-)
c)
Chlorine (Cl-)
d)
no
13.
When blue litmus paper is placed in a base
a)
it turns red
b)
it stays blue
c)
it turns green
d)
it dissolves
14.
Acids produce _________ ions when they break down or dissocciate.
a)
Hydroxide (OH-)
b)
Water
c)
Chlorine (Cl-)
d)
Hydrogen (H+)
15.
Bases taste
a)
bitter
b)
sour
c)
soapy
d)
sweet
16.
What characterizes a strong acid or base?
a)
ionic bonding
b)
presence of a hydroxide or hydrogen ion
c)
complete ionization in water
d)
polar covalent bonding
17.
Which of the following liquids is basic?
a)
lemons
b)
drain cleaner
c)
vinegar
d)
tomato juice
18.
Bases feel
a)
slippery
b)
dry
c)
rough
d)
moist
19.
Which of the following liquids is acidic?
a)
milk of magnesis
b)
seawater
c)
ammonia
d)
orange juice
20.
Acids taste
a)
salty
b)
sweet
c)
sour
d)
bitter
21.
The pH scale in general use ranges from
a)
0 to 7
b)
-1 to 1
c)
0 to 14
d)
0 to 1
22.
The pH of a basic solution is
a)
less than 0
b)
less than 7
c)
greater than 7
d)
greater than 14
23.
The pH of an acidic solution is
a)
less than 0
b)
less than 7
c)
greater than 7
d)
greather than 14
24.
Acids produce _________ ions when they break down or dissocciate.
a)
Hydroxide (OH-)
b)
Water
c)
Chlorine (Cl-)
d)
Hydrogen (H+)
25.
Which of the following substances would have the greatest concentration of H+ ions?
a)
Ammonia with
pH 13
pH 13
b)
Water with
pH 7
pH 7
c)
Milk with
pH 5
pH 5
d)
Lemon juice with
pH 2
pH 2
26.
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.
27.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
28.
The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?
a)
3
b)
9
c)
7
d)
5
29.
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
30.
A compound that changes color when it is in contact with an acid or base is called______________
a)
Acid
b)
Base
c)
Neutral
d)
Indicator
31.
On the pH scale what numbers are neutrals?
a)
8-14
b)
0-7
c)
7
d)
1
32.
The pH scale measures...
a)
...the strength of an acid.
b)
...the strength of hydrogen ions.
c)
...the concentration of hydrogen ions.
d)
...the concentration of an acid
33.
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
34.
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
35.
During science lab, students were asked to test a variety of common household substances and classify them as: acid, base, or neutral. Tests on shampoo produced the following results.
felt slippery
pH 8.5
turned red litmus blue
These results indicate
felt slippery
pH 8.5
turned red litmus blue
These results indicate
a)
Shampoo is an acid
b)
Shampoo is a base
c)
Shampoo is neutral
d)
This is not enough information.
36.
Which of the following substances has the highest concentration of hydrogen ions in solution?
a)
bleach – pH 13
b)
water – pH 7
c)
tomato juice – pH 4
d)
vinegar – pH 3
37.
Which of the following aqueous solutions will cause litmus paper to turn red?
a)
NaOH
b)
NaCl
c)
HCl
d)
H2O
38.
Which pair of solutions would be acidic if mixed in equal quantities?
a)
A and B
b)
B and C
c)
B and D
d)
C and D
39.
A _________ acid ionizes alomst completely in water.
a)
Strong
b)
Weak
40.
______ 7 on the pH scale is considered a base.
a)
Above
b)
Below
41.
Lemon juice is 2.5 on the pH scale, therefore, it is considered a strong _____
a)
acid
b)
base
42.
A ________ base does not completely ionize in solution
a)
strong
b)
weak
43.
BOTH acids and bases
a)
turn red litmus blue.
b)
turn red litmus blue.
c)
donate protons to solution.
d)
conduct electricity in water.
44.
Litmus paper is made from water-soluble dyes which are extracted from lichens. This paper is used as an acid-base indicator. Which of these common household substances would turn blue litmus paper red?
a)
bleach
b)
lye
c)
soap
d)
vinegar
45.
During science class Billy used litmus paper to determine the pH of an unknown liquid. The blue litmus paper turned red but there was no change in the color of the red litmus paper.
The liquid Billy tested is probably
The liquid Billy tested is probably
a)
a base.
b)
neutral.
c)
an acid.
d)
of pH 7.
46.
A substance with a pH of 9 has
a)
no H30+ ions or OH- ions.
b)
more H30+ ions than OH- ions.
c)
more OH- ions than H30+ ions.
d)
the same number of H30+ ions as it does OH- ions.
47.
Gardeners understand that plants have specific pH requirements. Most plants thrive in soil with a pH that is slightly acidic, neutral, or slightly basic. Imagine your soil is very acidic, with a pH of 3.5. How can you raise the pH to an appropriate level so your garden plants will survive?
a)
Add fertilizer.
b)
Water frequently to wash away the acid.
c)
Add organic matter like peat moss or humus.
d)
Add a base like limestone or calcium carbonate.
48.
Bradley was working in the lab. He accidentally poured a container of concentrated hydrochloric acid into his container of distilled water. Not thinking much of it, he continued with his work as if nothing happened. Which of these would be the result of this laboratory accident?
a)
The water will change to a bright pink color.
b)
The new solution would decrease in temperature.
c)
The solution has now become a good conductor of electricity.
d)
HCl and water have the same chemical and physical properties, so nothing would happen.
49.
How does milk of magnesia act to calm an upset stomach?
a)
Acidic milk of magnesia helps to counteract the stomach acid.
b)
An upset stomach requires more acid instead of milk of magnesia.
c)
The basic pH of milk of magnesia neutralizes any extra stomach acid.
d)
Milk of magnesia has a neutral nature which dilutes the stomach acid.
50.
The pH of a cup of black coffee is 5 while the pH of glass of tomato juice is 4. Comparing the pH of the two liquids, the tomato juice has _______________ [H+] than the coffee.
a)
half as many
b)
10 times more
c)
10 times less
d)
100 times more
51.
A reaction between an acid and a base is called a(n) ________________ reaction.
a)
hydro
b)
ionization
c)
neutralization
d)
redox
52.
According to the scale, which of these substances is the strongest acid?
a)
NaOH
b)
blood
c)
bleach
d)
lemon juice
53.
According to the pH chart, which is the strongest base?
a)
HCl
b)
NaOH
c)
blood
d)
saliva
54.
Lemon Juice
Tums (antacid)
Water
Put all of the above household items in order from lowest to highest pH.
Tums (antacid)
Water
Put all of the above household items in order from lowest to highest pH.
a)
Lemon juice, water, Tums
b)
Water, Tums, Lemon Juice
c)
Water, Lemon Juice, Tums
d)
Tums, water, lemon juice
55.
Oven cleaner is a highly caustic chemical that reacts with baked on foods. It is dangerous to the touch and has a very slippery feel.
What is the likely pH of oven cleaner?
What is the likely pH of oven cleaner?
a)
below 4
b)
around 7
c)
above 10
d)
between 5 and 7
56.
Pepsi
Vinegar
Orange Juice
What property do all three of these common household substances have in common?
Vinegar
Orange Juice
What property do all three of these common household substances have in common?
a)
They are all acidic.
b)
They all taste bitter.
c)
They all have a pH above 7.
d)
They all turn litmus paper blue.
57.
Bleach
Detergent
Ammonia
What property do all three of these common household substances have in common?
Detergent
Ammonia
What property do all three of these common household substances have in common?
a)
They are all acidic.
b)
They all taste sour.
c)
They all have a pH above 7.
d)
They all turn litmus paper red.
58.
Coca cola is similar to tomato juice because
a)
they are both bases.
b)
they are both acids.
c)
they are carbonated.
d)
they are high in fructose.
59.
Milk of magnesia is a base. What happens when you drink milk of magnesia for an upset stomach?
a)
It raises the pH of your stomach.
b)
It lowers the pH of your stomach.
c)
It cleanses the stomach of harmful, painful bacteria.
d)
It coats the walls of your stomach with a protective layer.
60.
Eddie's chemistry teacher has asked the class to add various household substances to this scale of acids and bases. Eddie must decide where add baking soda, pH 9.
Eddie should insert baking soda, pH 9, as a
Eddie should insert baking soda, pH 9, as a
a)
weak acid.
b)
weak base.
c)
strong acid.
d)
strong base.
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