Ocean 100 Exam 2 SDSU UPDATED Exam
Questions and CORRECT Answers
What makes up the water molecule, the charges, the bond angle? - CORRECT ANSWER -
-Electrons (-) -8 on outer shell
-Protons (+)
-Neutrons (0)
-Nucleus
-Atom
-Ions
When does a water molecule expand? - CORRECT ANSWER - at 105 degrees
What's so peculiar about this molecule? - CORRECT ANSWER - it's one of the few
molecules that is present on earth in 3 different ways: as a liquid, solid, and gas
The kinds of bonds in the water molecule? - CORRECT ANSWER - covalent bonds- o
atoms share 2 electrons with H atoms
The kinds of bonds connecting all the water molecules together to form liquid? - CORRECT
ANSWER - hydrogen bonds
What do these bonds lead to? - CORRECT ANSWER - hold the molecules together and
take a lot of energy
Why is water a polar molecule? - CORRECT ANSWER - because it behaves like an
electromagnet
What do we call water as a result of this? - CORRECT ANSWER - universal solvent
because it dissolves substances
, What happens to Salt in water? - CORRECT ANSWER - it dissolves
What are the three phases of water? - CORRECT ANSWER - Ice- molecules locked in
place
Liquid- most molecules are connected
Gas- independent molecules
How does each phase change? - CORRECT ANSWER - -Water changes to ice when heats
removed
-Ice changes to water when you add heat
-Water changes to gas when you add heat
What is the heat capacity of water? - CORRECT ANSWER - very high because oceans
absorb and release huge amounts of heat with little change in temperature
What are the thermal properties of water? - CORRECT ANSWER - phases of water,
temperature, salinity, density
What is the heat capacity of sand? - CORRECT ANSWER - lower heat capacity because it
takes less heat to raise it's temperature
What is the ocean's influence on coastal climates? - CORRECT ANSWER - oceans
moderate the temperature along the coasts making it much cooler than inland
How does salinity and temperature affect density? - CORRECT ANSWER - -when S
increases, D increases
-when T decreases, D increases
What is density? - CORRECT ANSWER - mass per unit volume (D=M/V)
Questions and CORRECT Answers
What makes up the water molecule, the charges, the bond angle? - CORRECT ANSWER -
-Electrons (-) -8 on outer shell
-Protons (+)
-Neutrons (0)
-Nucleus
-Atom
-Ions
When does a water molecule expand? - CORRECT ANSWER - at 105 degrees
What's so peculiar about this molecule? - CORRECT ANSWER - it's one of the few
molecules that is present on earth in 3 different ways: as a liquid, solid, and gas
The kinds of bonds in the water molecule? - CORRECT ANSWER - covalent bonds- o
atoms share 2 electrons with H atoms
The kinds of bonds connecting all the water molecules together to form liquid? - CORRECT
ANSWER - hydrogen bonds
What do these bonds lead to? - CORRECT ANSWER - hold the molecules together and
take a lot of energy
Why is water a polar molecule? - CORRECT ANSWER - because it behaves like an
electromagnet
What do we call water as a result of this? - CORRECT ANSWER - universal solvent
because it dissolves substances
, What happens to Salt in water? - CORRECT ANSWER - it dissolves
What are the three phases of water? - CORRECT ANSWER - Ice- molecules locked in
place
Liquid- most molecules are connected
Gas- independent molecules
How does each phase change? - CORRECT ANSWER - -Water changes to ice when heats
removed
-Ice changes to water when you add heat
-Water changes to gas when you add heat
What is the heat capacity of water? - CORRECT ANSWER - very high because oceans
absorb and release huge amounts of heat with little change in temperature
What are the thermal properties of water? - CORRECT ANSWER - phases of water,
temperature, salinity, density
What is the heat capacity of sand? - CORRECT ANSWER - lower heat capacity because it
takes less heat to raise it's temperature
What is the ocean's influence on coastal climates? - CORRECT ANSWER - oceans
moderate the temperature along the coasts making it much cooler than inland
How does salinity and temperature affect density? - CORRECT ANSWER - -when S
increases, D increases
-when T decreases, D increases
What is density? - CORRECT ANSWER - mass per unit volume (D=M/V)
