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42 terms

Chapter 5 Exam 2

STUDY
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increases seawater salinity
evaporation, high temperature, low latitude, sea ice formation
decreases seawater salinity
river input, precipitation
sublimation
change in phase from solid to gas
condensation
change in phase from gas to liquid
evaporation
change in phase from liquid to gas
pycnocline
rapid change in density with slight change in depth
halocline
rapid change in salinity with slight change in depth
False
Water can pile up higher than the edge of a container due to its low surface tension.
True
Water is a polar molecule.
True
Water molecules exhibit strong cohesion.
False
Latent heat of vaporization is the same as latent heat of sublimation.
True
The latent heat of vaporization of water is greater than the latent heat of melting.
True
Evaporation causes cooling in the residual liquid.
True
Heat capacity of liquid water is 1 calorie per gram per degree C
True
Chloride and sodium are the most abundant ions in seawater.
False
Salinity refers to all the solid materials in seawater including dissolved and suspended substances.
True
The density of seawater is affected by salinity and temperature.
True
The alkalinity of a solution is a measure of its tendency to release hydroxide ions when dissolved.
False
Any solution with a pH of greater than 7.0 is acidic
True
As a whole, the pH of the ocean is slightly alkaline.
True
pH will tend to rise in areas of the ocean with high primary productivity.
The phase in which water exists is determined by:
temperature and pressure.
Hydrogen bonds form between neighboring water molecules because of:
polarity of water molecules
The surface tension of water:
is relatively high.
Covalent bonds form between hydrogen and oxygen atoms in a water molecule as a result of the
sharing of electrons between atoms.
Water can pile up a short distance above a container's rim due to:
high surface tension.
Some insects can glide across the surface of water due to water's:
surface tension.
Many of the unique properties of water are attributed to the fact that water:
is a polar molecule.
The amount of energy that is necessary to raise the temperature of one gram of water by one degree C is called the:
calorie
Which property of water causes coastal communities to have only moderate differences in daily highs and lows when compared to inland communities
high heat capacity
Latent heat is used to:
change states of matter.
A beaker contains a mixture of ice and pure water at 0oC. What happens to the temperature of the mixture as heat is added?
It remains constant until the ice melts; then it begins to rise.
When water evaporates from the ocean surface:
the remaining water is cooled.
In comparison to most other liquids, the heat capacity of water is:
higher than other liquids
The average salinity of sea water is:
3.5%
The Principle of Constant Proportions states that
the relative concentrations of seawater ions do not change.
Which of the following statements regarding pH is not true?
As a whole, the pH of the ocean is slightly acidic.
The ion in seawater that serves as a buffer is
HCO3-.
The transfer of water from the atmosphere to the oceans to the continents is known as the:
hydrologic cycle.
A rapid change in ocean temperature with change in depth is the:
thermocline.
A rapid change in ocean density with change in depth is the
pycnocline.
Word Analysis. 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.
buffering capacity, hydrogen ion, pH