honors biology - water

Download Honors Biology - Water

Post on 14-May-2015

913 views

Category:

Education

0 download

Embed Size (px)

TRANSCRIPT

  • 1.WATER WATER AND THE FITNESS OF THE ENVIRONMENT

2. OUTLINE Polar Molecule and Hydrogen Bonds Properties of Water Acid and Base 3. H BONDS 4. FORMATION OF HYDROGEN BONDS 5. ALL ABOUT WATER 6. 1. COHESIVE BEHAVIOR 7. Surface Tension 8. 2. MODERATION OF TEMPERATURE 9. HIGH SPECIFIC HEAT Water = 1 cal/g/C Related to bonding: Heat is absorbed when hydrogen bonds break Heat is released when hydrogen bonds formHigh specific heat of water minimizes temperature fluctuations. 10. HIGH HEAT OF VAPORIZATIONHeat a liquid must absorb for 1 g to be converted to gas. Evaporative cooling. 11. 3. EXPANSION WHEN FROZENICE FLOATS 12. 4. SOLVENT OF LIFETerms you should know! Solution Solvent Solute 13. Water dissolves ionic 14. and nonionic polar compounds. 15. HYDROPHOBIC Scared 16. HYDROPHILIC Loving 17. ACIDS AND BASES 18. POSSIBLE SHIFTS(H+ Ions - Hydrogen) Changes in concentrations can drasticallyaffect the chemistry of a cell 19. ACIDA substance that increases the H+ concentration of a solution. pH values less than 7 [H +] > [OH -] 20. BASEA substance that reduces the H+ concentration of a solution. pH values greater than 7 [H +] < [OH -] 21. BUFFERSMinimize changes in concentrations of H+ and OH- in a solution. 22. IN THE ENVIRONMENT