Question 1

The ion in sea water that serves as a buffer is:

Accepted Answer

A)   Ca⁺².
B)   Cl⁻.
C)   CO₂.
D)   HCO₃⁻.
E)   Na⁺.

Question 2

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases.
- Choose the one option that does not fit the pattern.

Accepted Answer

A)  boiling point
B)  buffering capacity
C)  freezing point
D)  heat capacity
E)  surface tension

Question 3

Hydrogen bonds:

Accepted Answer

A)   decrease the density of frozen water.
B)   give water a high capacity.
C)   increase the boiling point of water.
D)   increase the freezing point of water.
E)   All of the above are true of hydrogen bonds in water.

Question 4

Which property of water causes coastal communities to have only moderate differences in daily highs and lows when compared to inland communities?

Accepted Answer

A)   high heat capacity
B)   high salinity
C)   high viscosity
D)   low heat capacity
E)   low viscosity

Question 5

The surface tension of water:

Accepted Answer

A)   increases as density decreases.
B)   is related to salinity.
C)   is relatively high.
D)   is relatively low.
E)   is very similar to similar liquids.

Question 6

Residence time:

Accepted Answer

A)   describes the solubility of salt ions in water.
B)   determines the rate at which nutrients pass from one trophic level to another.
C)   increases as water depth decreases.
D)   is the average length of time that substances reside in the ocean.
E)   relates the solubility of an ion to the rate at which it precipitates to form sediment deposits.

Question 7

The phase in which water exists is determined by:

Accepted Answer

A)   density and pressure.
B)   density and salinity.
C)   pressure and salinity.
D)   temperature and pressure.
E)   temperature and salinity.

Question 8

Seawater:

Accepted Answer

A)   contains 30-35 parts per thousand salt ions.
B)   contains chloride, sodium, sulfate, magnesium, calcium, and potassium ions.
C)   dissolves oxygen more readily than carbon dioxide.
D)   has the same proportion of salt ions world-wide irrespective of total salinity.
E)   is 3.0 to 3.5% salt on average.

Question 9

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases.
- Choose the one option that does not fit the pattern.

Accepted Answer

A)  carbonate ion
B)  bicarbonate ion
C)  chloride ion
D)  hydrogen ion
E)  hydroxide ion

Question 10

Salinity refers to all of the solid materials in seawater including dissolved and suspended substances.

Accepted Answer

A) True 
 B)False

Question 11

A beaker contains a mixture of ice and pure water at 0ᵒC. What happens to the temperature of the mixture as heat is added?

Accepted Answer

A)   It immediately begins to rise slowly.
B)   It remains constant until the ice melts then it begins to rise.
C)   It rises rapidly as the ice melts.
D)   It rises slowly until it reaches 32ᵒC then it remains constant as the ice melts.
E)   The temperature pattern cannot be predicted.

Question 12

Describe various methods used to desalinate seawater.

Accepted Answer

There are several methods used to desali...

Question 13

Hydrogen bonds form between neighboring water molecules because of:

Accepted Answer

A)   electron sharing.
B)   electron transfer.
C)   polarity of water molecules.
D)   surface tension.
E)   viscosity of water.

Question 14

Which of the following statements regarding pH is not true?

Accepted Answer

A)   A pH of 3.0 is acidic and a pH of 10.0 is alkaline.
B)   As a whole, the pH of the ocean is slightly acidic.
C)   Buffers prevent large changes in the pH of a solution.
D)   pH will increase in areas of rapid plant or algal growth.
E)   pH relates to relative acid-base ion balance in a solution.

Question 15

A rapid change in ocean density with change in depth is the:

Accepted Answer

A)   barocline.
B)   halocline.
C)   isocline.
D)   pycnocline.
E)   thermocline.

Question 16

Latent heat of vaporization is the same as latent heat of sublimation.

Accepted Answer

A) True 
 B)False

Question 17

What is the origin of the salt ions in seawater?

Accepted Answer

The sources of salt ions in se...

Question 18

Water can pile up a short distance above a container's rim due to:

Accepted Answer

A)   high capillary action.
B)   high surface tension.
C)   high viscosity.
D)   low surface tension.
E)   low viscosity.

Question 19

Discuss how climatological processes affect seawater salinity.

Accepted Answer

Precipitation in the form of rain and sn...

Question 20

Evaporation causes cooling in the residual liquid.

Accepted Answer

A) True 
 B)False

Exam 5: Water and Seawater

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. - Choose the one option that does not fit the pattern.

Correct AnswerverifiedShow Answer

Discuss how climatological processes affect seawater salinity.

Correct AnswerverifiedPrecipitation in the form of rain and sn...View AnswerShow Answer

A rapid change in ocean density with change in depth is the:

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Evaporation causes cooling in the residual liquid.

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The phase in which water exists is determined by:

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The ion in sea water that serves as a buffer is:

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Residence time:

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Which property of water causes coastal communities to have only moderate differences in daily highs and lows when compared to inland communities?

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Latent heat of vaporization is the same as latent heat of sublimation.

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A beaker contains a mixture of ice and pure water at 0ᵒC. What happens to the temperature of the mixture as heat is added?

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Describe various methods used to desalinate seawater.

Correct AnswerAnswered by ExamLex AIThere are several methods used to desali...View AnswerShow Answer

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. - Choose the one option that does not fit the pattern.

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Hydrogen bonds:

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Salinity refers to all of the solid materials in seawater including dissolved and suspended substances.

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Water can pile up a short distance above a container's rim due to:

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Seawater:

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Hydrogen bonds form between neighboring water molecules because of:

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The surface tension of water:

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What is the origin of the salt ions in seawater?

Correct AnswerverifiedThe sources of salt ions in se...View AnswerShow Answer

Which of the following statements regarding pH is not true?

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