Date _____
Properties of Water
Name _______________
Polarity and Hydrogen Bonding
1. If there are 600 water molecules in a glass. What is the total number of hydrogen atoms
in the glass? What is the total number of oxygen atoms in the glass?
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2. Why is water considered to be a polar molecule?
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3. Explain why the oxygen atom in water has a negative charge.
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4. Explain why the two pictures below are incorrect:
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5. What is the name of the bond formed between water molecules? ___________________
Heat Capacity
6. As a substance is heated its molecules vibrate slower / faster.
7. Since water has a very high heat capacity the ocean temperature is very stable / unstable
.
8. During a hot summer day the temperature of the water heats up much faster / slower than
the temperature of the air.
9. Most animals in the ocean are cold blooded which means that their body temperature is
less than / greater than / equal to the temperature of the water.
10. What would happen to the animals living in the ocean is that ocean temperature was to
rapidly change?
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Date _____
Properties of Water
Name _______________
VISCOSITY:
11. The diagram below shows a dish containing many water molecules. Draw line to
represent hydrogen bonds to connect the hydrogen of one water molecule to the oxygen
of another water molecule.
12. What is viscosity? ________________________________________________
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13. Hydrogen bonding make water more / less viscous.
14. Why are most microscopic marine animals floaters and not active swimmers?
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15. Would it be harder to swim through a pool of syrup or a pool of water? Why?
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STATES OF MATTER
16. Does cold water (not frozen) sink or float in warmer water? Why?
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17. Which state of water forms the most
hydrogen bonds?
18. Which state of water forms the least
hydrogen bonds.
19. What is the temperature range
where water will remain a liquid?
20. Why do cracks in pavement widen
over time to become pot holes
during the winter?
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