ENV-1010 Lecture Notes - Lecture 18: Chemical Polarity, Surface Tension, Drainage Basin
13 Sep 2016
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Document Summary
Water resources: terms, statistics, and properties of water. Water structure: water is a polar molecule with covalent bond, water molecules bound together by hydrogen bonds and van der waal"s forces (+ and -) make very strong bond. Water properties: water is weird, high freezing and boiling points compared to similar substances. Strong hydrogen bonds make bonds difficult to loosen (melting) or break (boiling) Allows water to exist as a liquid at surface temperatures: high heat capacity ability to store heat without changing phase. Absorbs and stores heat to moderate climate. Reduces temperature flux in organisms: high solubility ability to dissolve other things. Polar molecules of water stick to other matter and tears matter apart (dissolving: filters some uv radiation. Protects plants and animals from harmful radiation: high surface tension- ability to stick to other things. Polar molecules stick to matter especially with ionic bonds.
