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Cohesion

AP Bio Chapter 3 notes

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Biology
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Chemistry
Chemical bonding
Intermolecular forces
Inorganic solvents
Oxides
Water
Properties of water
Hydrogen bond
Chemical polarity
Oxygen
Chemical bond
Cohesion
Technology
Tags: 
Chemistry
Chemical bonding
Physical chemistry
Inorganic solvents
Oxides
Solutions
Properties of water
Hydrogen bond
water
Hydrogen
Chemical bond
Chemical polarity
Environment
Technology

Chapter 3 ? Water & Fitness of the Environment Effect of Water?s Polarity Polarity of water causes hydrogen bonding Water is made up of 2 hydrogen and 1 oxygen; held together by 1 covalent bond Oxygen is slightly negative and hydrogen is slightly positive ?> polarity Polarity causes hydrogen to be attracted to other oxygen molecules, creating hydrogen bonds; each molecule can be connected to 4 other molecules 4 properties of water Water?s cohesion Stabilization of temperature Expansion upon freezing Versatility as a solvent Cohesion of water molecules Hydrogen bonds keep water molecules sticking together - hydrogen bonds are very weak; they form and reform with great frequency Cohesion: the process in which hydrogen bonds hold the substances together
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