Oceanography- Chapter 5(All Accurately solved)
If all the water in the ocean was evaporated and only the solid salt was left behind, how much
salt would there be? correct answersenough to form a layer about 500 feet thick that covers all of
Earth
Which statement accurately describes the interaction between a water molecule and sodium
chloride as it dissolves? correct answersThe negative oxygen end of the water molecule is
attracted to the positive sodium ion.
Why is water able to dissolve salt? correct answersWater molecules are polar and are attracted to
the electrically charged ions that form salts.
Which attributes of the water molecule arise from the unique bend it it's geometry? correct
answersThe hydrogen end has a positive charge and the oxygen has a negative charge
Why does the water molecule have polarity? correct answersWater is geometrically bent to give
one side, or pole, a positive charge and the opposite side a negative charge.
The most common liquid on earth is? correct answersWater
The density (mass per volume) of most liquids increases as the __________ is lowered. correct
answersTemperature
The density of pure water reaches its maximum density, or plateaus, at an approximate
temperature of __________. correct answers4ºC
What causes waters density to decrease when it freezes? correct answershydrogen bonds
What common household item is used in this video to demonstrate a technique used by
oceanographers to measure seawater salinity? correct answerslight bulb
As shown in the video demonstration, air has ___ Electrical conductivity and a metal key has
____ and electrical conductivity. correct answerslow, high
What is allowing electrical current to pass through tap water from one electrode to the other?
correct answersthe amount of salt (dissolved substances)
In which fluid did the bulb shine the brightest? correct answersthe beaker filled with seawater
As demonstrated by the fluids shown in the video, the higher the salinity of a fluid, the ____ the
light lit up. correct answersmore
What common household item is used in this video to demonstrate how the ocean is layered
based on density? correct answersTap water with a small amount of food coloring
If all the water in the ocean was evaporated and only the solid salt was left behind, how much
salt would there be? correct answersenough to form a layer about 500 feet thick that covers all of
Earth
Which statement accurately describes the interaction between a water molecule and sodium
chloride as it dissolves? correct answersThe negative oxygen end of the water molecule is
attracted to the positive sodium ion.
Why is water able to dissolve salt? correct answersWater molecules are polar and are attracted to
the electrically charged ions that form salts.
Which attributes of the water molecule arise from the unique bend it it's geometry? correct
answersThe hydrogen end has a positive charge and the oxygen has a negative charge
Why does the water molecule have polarity? correct answersWater is geometrically bent to give
one side, or pole, a positive charge and the opposite side a negative charge.
The most common liquid on earth is? correct answersWater
The density (mass per volume) of most liquids increases as the __________ is lowered. correct
answersTemperature
The density of pure water reaches its maximum density, or plateaus, at an approximate
temperature of __________. correct answers4ºC
What causes waters density to decrease when it freezes? correct answershydrogen bonds
What common household item is used in this video to demonstrate a technique used by
oceanographers to measure seawater salinity? correct answerslight bulb
As shown in the video demonstration, air has ___ Electrical conductivity and a metal key has
____ and electrical conductivity. correct answerslow, high
What is allowing electrical current to pass through tap water from one electrode to the other?
correct answersthe amount of salt (dissolved substances)
In which fluid did the bulb shine the brightest? correct answersthe beaker filled with seawater
As demonstrated by the fluids shown in the video, the higher the salinity of a fluid, the ____ the
light lit up. correct answersmore
What common household item is used in this video to demonstrate how the ocean is layered
based on density? correct answersTap water with a small amount of food coloring
