Properties of Water

Question 1

Properties of water (7)

Answer 1

polarity, cohesion, adhesion,capillary action, temperature control, high heat vaporization, density, solvent

Question 2

Polarity

Answer 2

polar covalent bonds; unequal sharing of electrons between oxygen and hydrogen

Question 3

Cohesion

Answer 3

Attraction of molecules for other molecules of the same kind (H20 to H20)

Question 4

Adhesion

Answer 4

Attraction to other molecules that are also polar (H20 to other); caused by polarity of H20

Question 5

Capillary Action

Answer 5

the upward movement of water due to the forces of cohesion, adhesion, and surface tension

Question 6

Temperature Control

Answer 6

Water resists changes in heat bc of hydrogen bonds

Question 7

Importance of high specific heat of water

Answer 7

regulates ocean temperature, moderates air temperature, organisms can resist changes in their internal temperature

Question 8

High Heat Vaporization

Answer 8

water requires a large amount of energy to evaporate due to strong hydrogen bonds

Question 9

Density (floating ice)

Answer 9

as water solidifies it expands and becomes less dense; due to hydrogen bonds - bonds break when cooled

Question 10

Solvent

Answer 10

dissolving agent in a solution; water in universal solvent