AP Bio Chapter 3 notes
Subject:
Biology [1]
Tags:
Chemistry [15]
Chemical bonding [16]
Physical chemistry [17]
Inorganic solvents [18]
Oxides [19]
Solutions [20]
Properties of water [21]
Hydrogen bond [22]
water [23]
Hydrogen [24]
Chemical bond [25]
Chemical polarity [26]
Environment [27]
Technology [28]
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