Chapter 2 bio

Chapter 2 bio - Ice water is less dense when frozen(ice...

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Chapter 2 Why is water so important to life? Water 1. good solvent 2. Moderates effects of temp 3. Forms an unusual solid 4. sticks together Good Solvent Dissolves quickly molecules with ionic bond (NaCl – salt) Dissolves polar molecules (glucose – sugar) Water and dissolved substances = solution Water Moderate Temp Water heats and cools slowly Must break or form H bonds Water removes heat by evaporation Water is an unusual solid
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Unformatted text preview: Ice: water is less dense when frozen (ice floats) Water stick together Cohesion: tendency to stick Surface tension: surface resists breaking Adhesion: sticks to polar surface all because of H bonds Acids/ Bases Solutions have different properties depending on how many H+ protons are present Hydrogen ions H+ protons Acids release H+ when dissolved in H20 Bases release OH- when dissolved in H2O...
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This note was uploaded on 09/24/2008 for the course BIOL 1001 taught by Professor Minor during the Spring '08 term at LSU.

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Chapter 2 bio - Ice water is less dense when frozen(ice...

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