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Properties Of Water
Test Description: I can explain the properties of water.
Instructions: Answer all questions to get your test result.
1) Water is unique in that it expands when it freezes. How does this explain the ability of ice to float?
A
As it expands, the ice becomes more dense than liquid water.
B
As it expands, it fills with hydrogen bubbles that make it float.
C
As it expands, the ice becomes less dense than liquid water.
D
As it expands, it becomes heavier than liquid water.
2) Water is a polar molecule. This means that
A
All of these are correct.
B
The molecule has 2 oppositely charged ends.
C
The electrons are not evenly distributed between the hydrogen and oxygen atoms.
D
One end is more positive and the other is more negative.
3) The bond that forms between water molecules, causing cohesion, is called a(n)
A
hydrogen bond
B
covalent bond
C
nonpolar covalent bond
D
ionic bond
4) What causes water to stick to the sides of a glass graduated cylinder, forming a meniscus?
A
cohesion
B
covalent bonds
C
surface tension
D
adhesion
5) Water moves upward from the roots of a plant to the leaves through very thin tubes in the stem. This tendency of water to rise in a thin tube is called
A
polarity
B
capillary action
C
surface tension
D
cohesion
6) Water at the surface sometimes behaves like a film and can support a small amount of weight. This is called
A
polarity
B
surface tension
C
adhesion
D
capillary action
7) A student is doing a lab in which she counts the number of drops of water that she can place on a penny. She notices that the water seems to mound up on the penny. What property of water BEST describes its ability to mound up?
A
cohesion
B
high specific heat
C
adhesion
D
capillary action
8) Water is known as the universal solvent. What is a solvent?
A
A substance that dissolves something else.
B
A mixture involving a solution and a suspension.
C
A substance that will not dissolve.
D
A substance that will dissolve in something else.
9) A solution is made using salt and water. The salt in this solution is the _____________.
A
sediment
B
solvent
C
solute
D
suspension
10) You are making Kool-aid after school. You mix the Kool-aid powder with water to make it. Which of the following statements below is FALSE?
A
The Kool-aid is the solvent and the water is the solute.
B
The Kool-aid is the solute and the water is the solvent.
C
The Kool-aid and water mixture is an example of a solution.
D
The Kool-aid powder dissolves in the water.
*select an answer for all questions
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