Water and It's Properties - Water and Its Properties A....

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Water and Its Properties A. Essential to Life 1. 70-95% Body Weight 2. Source of Oxygen - H 2 O responsible for the O 2 through photosynthesis - H 2 S Hydrogen Sulfide used in photosynthesis by “Sulfur Bacteria” 3. Solvent - H 2 O is excellent solvent because it is polarized - Hydrolysis - the adding of water to break the bonds of Large molecules. - Condensation - making of “human” cells by chemical reactions in body; by-product is water B. Cohesion- Water sticking to water 1. Surface Tension- the hydrogen bonds between H 2 O molecule C. Adhesion- water sticking to everything else 1. Capillary Action (need both Adhesion and Cohesion)
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2. Cohesion-adhesion tension- used to get water from root to top of plant or tree 3. Imbibition- when an object absorbs and swells with water 4. Solvent - Water is attracted to other polar molecules - Used in hydrolysis and Condensation D. Stable Temperature 1. High Specific Heat- amount of Heat/Energy that is required to raise the temperature of 1 gram of any substance 1°C. -
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This note was uploaded on 04/07/2008 for the course BS 131 taught by Professor Smith during the Spring '08 term at University of the Sciences in Philadelphia.

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Water and It's Properties - Water and Its Properties A....

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