Chapter3 - iii. Water molecules are constantly moving e....

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Chapter 3 Water 1. H20 = POLAR MOLECULE (review) a. Define polar b. chemistry of water is responsible for ALL properties of water 2. 6 PROPERTIES OF WATER a. Cohesive i. “stick” to one another b. Adhesive i. “stick” to surfaces c. high surface tension i. surface tension = measurement of how hard it is to disrupt the surface ii. EXAMPLES of water’s high surface tension 1. Puffins in Gulf of Alaska 2. Insects on ponds or lakes 3. Skipping rocks on a lake d. moderates temperature i. water can ABSORB heat easily 1. What is the definition of heat? i. Heat = measurement of kinetic energy ii. Kinetic energy = energy of motion
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Unformatted text preview: iii. Water molecules are constantly moving e. expands when it freezes i. why is this important? f. water is a good solvent i. water is a particularly good solvent as long as the solute is hydrophilic 1. HYDROPHILIC = water loving (ionic or polar) 2. HYDROPHOBIC = water fearing YOU SHOULD BE ABLE TO EXPLAIN HOW HYDROGEN BONDING IS RESPONSIBLE FOR ALL 6 PROPERTIES OF WATER II. Dissociation of water = pH pH ranges from 1-14: low pH = acid = high [H+] high pH = basic = low [H+] DEFINE ACID & BASE YOU SHOULD BE ABLE TO EXPLAIN HOW THE DISSOCIATION OF WATER EXPLAINS pH...
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This note was uploaded on 07/08/2011 for the course BIOL 101 taught by Professor Smith during the Spring '11 term at Aachen University of Applied Sciences.

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Chapter3 - iii. Water molecules are constantly moving e....

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