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Water Chemistry
Test Description: Water Chemistry
Instructions: Answer all questions to get your test result.
1) What is the average salinity of the deep ocean?
A
19 ppt
B
5 ppt
C
35 ppt
D
3.5 ppt
2) Which ions are the most abundant in seawater?
A
sodium and chloride
B
calcium and chloride
C
sodium and magnesium
D
calcium and sodium
3) Which property of water explains why water can moderate climate?
A
Heat Capacity
B
Heat of Vaporization
C
Surface tension
D
Heat of fusion
4) What is the most common way that carbon dioxide dissolves in water?
A
bicarbonate
B
carbonic acid
C
nitrate
D
carbonate
5) Which is the most basic ph?
A
3.5
B
5.3
C
6.5
D
6.0
6) Which gas is most abundant at the surface of ocean water?
A
oxygen
B
hydrogen
C
carbon dioxide
D
nitrogen
7) Which gas determines ph?
A
hydrogen
B
nitrogen
C
carbon dioxide
D
oxygen
8) What is the name of the ocean layer where salinity changes the most?
A
pycnocline
B
thermocline
C
mesocline
D
halocline
9) At what latitudes is the average salinity of surface water higher than deeper water?
A
At the poles
B
At the mid-latitudes
C
At the equator
10) Which of the following determines why water is the universal solvent?
A
high surface tension
B
density
C
high heat capacity
D
polarity
*select an answer for all questions
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