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Water Properties
Test Description: Water's Unique Properties
Instructions: Answer all questions to get your test result.
1) Water molecules are polar, with the
A
oxygen side being slightly positive and the hydrogen side being slightly negative
B
oxygen and hydrogen sides being slightly positive
C
oxygen and hydrogen sides being slightly negative
D
oxygen side being slightly negative and the hydrogen side being slightly positive.
2) If “like dissolves like,” then which molecule or substance would water NOT be able to dissolve?
A
An ionic molecule
B
A polar molecule
C
A nonpolar molecule
D
Water can dissolve everything
3) Why does ice float in water?
A
Ice will only float at very cold temperatures
B
Water is more dense as a solid than it is as a liquid
C
Adhesion causes ice to stick to water
D
Water is less dense as a solid than it is as a liquid
4) What kinds of bonds can form between two adjacent water molecules?
A
Polar Covalent
B
Covalent
C
Hydrogen
D
Ionic
5) Which statement best describes an effect of the low density of frozen water in a lake?
A
When water in a lake freezes, it floats, providing insulation for organisms below
B
Water in a lake freezes from the bottom up, killing most aquatic organisms
C
Water removes thermal energy from the land around a lake, causing the lake to freeze
D
When water freezes, it contracts, decreasing the water level in a lake.
6) Which of the following is a property of water that allows a water strider to walk on the surface of water?
A
solubility
B
high specific heat
C
low freezing point
D
cohesion
7) Which property of water allows it to dissolve many different substances?
A
cohesion
B
high specific heat
C
adhesion
D
high boiling point
8) Which statement describes an example of capillary action?
A
Water enters the atmosphere from the surface of the ocean
B
An insect walks on the surface of a pond
C
A tree draws water through tubes of tissues to supply its leaves
D
Sodium chloride dissolves in water
9) The unique properties of water result mainly from the polarity of its molecules. Which statement BEST describes this polarity?
A
Some water molecules attract each other, and some repel each other
B
A water molecule has two magnetic poles, a north pole and a south pole.
C
The oxygen side of a water molecule has a different electrical charge from the hydrogen side
D
The oxygen side of one water molecule repels the hydrogen side of another water molecule
10) Which property of water allows fallen leaves to float on a lake, providing food for organisms living near its surface?
A
cohesion
B
adhesion
C
high boiling point
D
capillary action
11) What type of bond occurs between the Hydrogen and Oxygen in a single water molecule?
A
Polar Covalent
B
Hydrogen
C
Ionic
D
Metallic
12) What charge do the hydrogen atoms in water have?
A
Neutral
B
Slightly Positive
C
Slightly Negative
D
Strongly Negative
13) What property of water is defined as water molecules sticking together?
A
Adhesion
B
Cohesion
C
Acidic
D
Polar
14) Which term means 'water-fearing' or 'water-hating?'
A
Hydrolysis
B
Hydrophilic
C
Hydropolar
D
Hydrophobic
*select an answer for all questions
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