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EL BIO 1.1 Summative Test - Properties of Water & pH
By Andrea Craig
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Last updated over 3 years ago
11 questions
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Question 1
1.
Water
molecule
bonds to (stick to)
another
water
molecule is called ___.
adhesion
cohesion
Question 2
2.
Water molecules are
polar
.
This means...
the hyd
r
ogen side is a little
negative
and the
oxygen
side is a little
positive
oxygen
and
hydrogen
sides are
both
a little
positive
.
oxygen
side is a little
negative
and the
hydrogen
side is a little
positive
.
Question 3
3.
Think of the pH chart. Which is
most acidic?
4.30
4.40
4.22
Question 4
4.
On a pH chart, what is
water
?
nuetral
acid
base
Question 5
5.
When
water
moves up trees, it is ____?
surface tension
capillary action
Question 6
6.
Which is the
strongest base
?
Sodium hydroxide
Ammonium chloride
Pure Water
Question 7
7.
Mix
oil
and
water
together. What happens after time?
They
stay mixed
together because they are both
polar
.
Water is
polar
and oil is
nonpolar
so they
separate
.
Question 8
8.
Insects stand on water because water __.
is a universal solvent
is a good evaporative coolant
has high cohesive properties which causes high surface tension
Question 9
9.
What is the bond type shown by the blue arrow in the picture?
covalent bond
hydrogen bond
ionic bond
Question 10
10.
What is the bond type shown by the blue arrow in the picture?
covalent bond
ionic bond
hydrogen bond
Question 11
11.
What is the charge on the hydrogen end of the molecule shown in the picture?
slightly negative (-)
slightly positive (+)
neutral