WorksheetsAcids and Bases
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
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
2.
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
3.
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.
4.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
5.
Turns litmus red
a)
Acids
b)
Bases
c)
All
6.
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
7.
Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water
8.
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
9.
Values from 0-14 that determine the acidity of a solution
a)
Punnett Square
b)
Matrix
c)
pH scale
d)
Math number line
10.
Ammonia has a pH of 12. Ammonia is __________.
a)
an acid
b)
a base
c)
an element
d)
a metal
11.
Soap is a weak base. What is true about the taste of bases?
a)
they taste sour
b)
they taste sweet
c)
they taste bitter
d)
they taste salty
12.
Compounds form when _______________.
a)
atoms of one element bond together
b)
atoms of two or more elements bond together
c)
molecules of one element are mixed together
d)
molecules of two or more elements are mixed together
13.
Which statement is true when acids and bases are mixed together?
a)
acids become stronger
b)
bases become stronger
c)
there is no change
d)
they neutralize each other
14.
Williams 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
15.
Which of the set of pH paper depicts that the dipped solution is highly acidic?
(compare with the pH scale and find out)
a)
b)
c)
16.
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
17.
One benefit of Red Cabbage Juice Indicator is that it...
a)
Tells you the exact pH
b)
Is very accurate
c)
It is very expensive
d)
It can be made from materials you have at home
18.
One drawback of pH paper is that it
a)
Only tells you if a substance is an acid or a base
b)
is very expensive
c)
has to be connected to a computer
d)
is not very accurate
19.
One benefit of a pH Meter is that it
a)
is very expensive
b)
only tells you if a substance is an acid or a base
c)
is very accurate
d)
can be made from substances you have at home
20.
One drawback to a pH Meter is that it
a)
Is very expensive
b)
is not very accurate
c)
only tells you if a substance is an acid or a base
d)
is messy
100 %
