1. Chapter 3 (p.46-56)
Water & Life

2. Water is a polar compound because…
Oxygen is more electronegative than hydrogen
Creates an uneven distribution of electrons within the molecule

3. Water’s polarity leads to hydrogen bonding

4. Water’s Polarity Gives It Its Properties
Adhesion & cohesion
Ability to moderate temperature
Expansion upon freezing
Versatility as a solvent

5. Figure 3.3 Water transport in plants.5

6. Figure 3.5 Effect of a large body of water on climate.6

7. Hydrogen bond Liquid water: Hydrogen bonds break and re-form Ice:
Figure 3.6
Hydrogen bond
Liquid water:
Hydrogen bonds
break and re-form
Figure 3.6 Ice: crystalline structure and floating barrier.
Ice:
Hydrogen bonds
are stable 7

8. Figure 3.7 Table salt dissolving in water.8