6 Water and Heat - Note taker needed for SWS 2007 See me...

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Unformatted text preview: Note taker needed for SWS 2007 See me after class if interested Unusual Properties of Water + + _ Polarity + Electric Dipole-+ Orientation Bond-Opposite charges attract each other (hydrogen bond) http://games.mochiads.com/c/g/polarityfreak/polarityfreak-11-Mochi-Sec.swf Hydrogen Bonding in Water Hydrogen Bonding Gives Water Unusual Properties Extensive Hydrogen Bonding Allows Water to Exist as a Liquid at Normal Temperatures And across a wide range in temperatures Examples High Boiling and Freezing Points Wide Liquid Range (100 o C) Other Unusual Thermal Properties Unusual Density Density M V grams cm 3 Low mass and high volume = low density High mass and low volume = high density Most substances are denser in their solid state than in their liquid state (the solid will sink in the liquid) Density Liquid to Solid? In liquid water each water molecule is bonded On average to 3 other water molecules....
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6 Water and Heat - Note taker needed for SWS 2007 See me...

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