WorksheetsAcids & Bases
Total questions: 19
Worksheet time: 18mins
Name
Class
Date
1.
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
2.
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.
3.
Which of the following is a base?
a)
orange juice
b)
water
c)
vinegar
d)
dishwashing detergent
4.
Litmus paper can be used to determine the _______ of a substance.
a)
relative volume
b)
temperature
c)
relative pH
d)
chemical formula
5.
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.
6.
Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water
7.
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
8.
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
9.
What would be considered the weakest base?
a)
8
b)
14
c)
7.8
d)
11.6
10.
Many cleaning solutions are bases. Which of the following is a property of most bases?
a)
feels slippery
b)
white colour
c)
can only be liquid
d)
tastes sour
11.
Values from 0-14 that determine the acidity of a solution
a)
Punnett Square
b)
Matrix
c)
pH scale
d)
Math number line
12.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
13.
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
14.
What methods can you use to measure the pH of a solution?
a)
Observing colour or clarity
b)
Measuring mass or volume
c)
Measuring density or electrical conductivity
d)
Using acid base-indicators or pH meters
15.
What is the range of pH values in an acidic solution?
a)
0-7
b)
7-14
c)
15-239058204958
d)
pH = 7
16.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
17.
Any substance that produces hydroxide ions in water is known as _____________.
a)
an acid
b)
a hydrogen ion
c)
a base
d)
a neutral
18.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
19.
William collected a rain sample and measured its pH to be 5.6. What does this mean?
a)
the rain water is a weak base
b)
the rain water is neutral
c)
the rain water is a strong acid
d)
the rain water is a weak acid
100 %
