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