Chapter 3 (Water and LIfe)

Question 1

Cohesive Behavior of Water (1/4 properties)

Answer 1

-cohesion (attraction between the same molecule)
-adhesion (attraction between different molecules)

caused by hydrogen bonding

applications: vascular transport in plants and surface tension

Question 2

Moderation of temperature (1/4 properties of water)

Answer 2

water has a high specific heat (takes a lot of heat energy to raise 1g of water’s temp 1 degree celsius)

caused by hydrogen bonding

Question 3

Expansion upon freezing

Answer 3

solid water is less dense and floats on top of water