Marine Science Unit 1 Review

What do you call the bond present in between H and O in a water molecule?

• covalent

• ionic

• hydrogen

• van der Waals

What do you call the general term used to describe the attraction of water molecules to itself?

• cohesion

• adhesion

• surface tension

• capillary action

Why is water pale blue in color?

• Because the hydrogen bonds vibrate and absorb red light

• 
  Because the hydrogen bonds vibrate and absorb blue light

• 
  Because the covalent bonds vibrate and absorb red light

• Because the covalent bonds vibrate and absorb blue light

What happens to water when it freezes?

• It expands and becomes more dense.

• 
  It expands and becomes less dense.

• 
  It contracts and becomes less dense.

• It contracts and becomes more dense.

Which property of water best explains why the law of definite proportions is observed in water?

• High Heat Capacity

• Good Solvent

• Expansive upon Freezing

• Cohesion

Which is true about the oxygen content of the ocean?

• It is higher at the surface.

• It is higher at the depths.

• It is constant all throughout the ocean.

• It is found in very small amounts in the ocean.

What is true about the carbon dioxide content of the ocean?

• It is higher at the surface.

• It is higher at the depths.

• It is constant all throughout the ocean.

• It is found in small amounts in the ocean.

Which of the following is NOT true regarding the relationship of various factors to the amount of dissolved gases?

• As the temperature increases, the amount of dissolved gases increases.

• As the salinity increases, the amount of dissolved gases decreases.

• As the salinity decreases, the amount of dissolved gases increases.

• As the temperature increases, the amount of dissolved gases decreases.

What does NOT correctly describe ocean acidification?

• It could cause deaths in marine organisms.

• It is caused by an increase in pH.

• It can cause the decrease in the size of clammed organisms.

• It is caused by the buildup of carbon dioxide gas in our oceans.

A 100 g aqueous solution has 28 g of sodium chloride.

How much is the concentration of sodium chloride in ^o/_^oo?

• 28 ^o/_^oo

• 28 ^o/_^oo

• 2.8 ^o/_^oo

• 0.28 ^o/_^oo