Which element would be surprisingly considered a trace element in ...

[Haya94]

Which element would be surprisingly considered a trace element in the ocean despite its abundance in the
  atmosphere?
  a. sodium
  b. nitrogen
  c. calcium
  d. chloride
  e. oxygen

Question 2

What is the colligative property that deals with the freezing point of water?
  a. Sea ice forms at a higher temperature than freshwater ice.
  b. Salinity disrupts the hydrogen bonding in water and increases the freezing point.
  c. Salt crystals become incorporated into ice as it forms causing the temperature to increase.
  d. Salinity disrupts the hydrogen bonding in water and acts as a type of antifreeze.
  e. Lake ice forms at a lower temperature than sea ice.

[carlsona147]

Answer to Question 1

b

Answer to Question 2

d