Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary

Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary Action Acids/Bases Energy Storage Formula: H 2 O Water is Polar: (+ / -) Pgs 40 -42 Only Mixes with other polar substances

Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary Action Acids/Bases Energy Storage Formula: H 2 O Water is Polar: (+ / -) Only Mixes with other polar substances

Hydrogen Bond The oxygen end has a - charge Solutions The hydrogen end has a + charge. Cohesion Surface Tension Adhesion Capillary Action Hydrogen Bonds Acids/Bases Energy Storage

Water is an excellent Solvent Hydrogen Bond Ex. Kool-aid Solutions Kool-aid Mix + Water = Oh Yeah! Cohesion Surface Tension Adhesion Capillary Action Solute + Solvent = Solution material added Liquid that all to the liquid items are added materials are Acids/Bases that will to distributed equally Energy Storage dissolve Solutions

Water is attracted to itself - Cohesion is the attraction of molecules of the same substance + + - Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary Action Acids/Bases Energy Storage Cohesion

Hydrogen Bond Cohesion at work Solutions The ability of the surface of a liquid to hold Cohesion lightweight objects because the force of the Surface Tension distributed weight is not as great as the attraction Adhesion between molecules Capillary Action Acids/Bases Energy Storage Surface Tension

Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary Action Acids/Bases Energy Storage Attraction of water to other materials Ex. Water sticking to a glass, Water droplets on a car, water droplets on a window or wall Adhesion

Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary Action Acids/Bases Energy Storage Adhesion and cohesion together cause water to move against gravity This is how water moves up plant’s stems! Capillary Action

• Taste sour • 0 -6 on the p. H scale • Ex. Stomach Acid 14 13 12 11 10 9 8 7 Water 6 5 4 3 Acids - • Higher concentration of (H+) + Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary Action Acids/Bases Energy Storage 2 1 • Higher concentration of (OH-) • Taste bitter • feel slippery or soapy • react with oils and grease • Ex. Bleach Bases

Hydrogen Bond Solutions Cohesion Surface Tension Adhesion Capillary Action Acids/Bases Energy Storage Water… • Absorbs heat slowly • Retains heat / Energy Longer • maintains temp. of Earth • maintains temp. of Organisms Homeostasis Energy Storage

Water Quiz - Question 1 1. Name The property: I washed my car yesterday. When I finished rinsing it off, it still looked wet and there were all these droplets of water stuck to my car. Even on the windshield that is sloped.

Water Quiz - Question 2 2. Acid or Base? Sour taste. Lots of H+ ions. A 3 on the p. H scale

Water Quiz - Question 3 3. Water is considered ______ because it has a positive and negative end.

Water Quiz - Question 4 4. When water is attracted to itself, like forming a droplet.

Water Quiz - Question 5 5. A solution is made of what two items _____ + ______ = solution

Water Quiz - Question 6 6. Acid or Base? Bitter taste. Lots of OH-. Used as cleaners.

Water Quiz - Question 7 7. What property is described? I saw a bug walking across the water! He didn’t sink through, and it looked like the water bent underneath it.

Water Quiz - Question 8 8. Areas of land along a large lake or an ocean, seem cooler than other areas near them. What property of water proves this to be true?

Water Quiz - Question 9 9. What type of bonding occurs between hydrogen atoms and other types of atoms?

Water Quiz - Question 9 10. What property of water is described? I put blue food coloring in my vase of roses. 2 days later my roses turned purple!