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h2o

bioligy
by

michelle frank

on 24 June 2011

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Transcript of h2o

water h20 Water is a chemical substance with the chemical formula H2O Water is a chemical substance with the chemical formula H2O Its molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces Water also exists in a liquid crystal state near hydrophilic surfaces Hydrogen Bond A hydrogen bond is the attractive interaction of a hydrogen atom with an electronegative atom, such as nitrogen, oxygen or fluorine, that comes from another molecule or chemical group hydrogen bond A hydrogen bond is the attractive interaction of a hydrogen atom with an electronegative atom, such as nitrogen, oxygen or fluorine, that comes from another molecule or chemical group The cohesion of water
Cohesion of water is how well it sticks to itself. Also adhesion of water is how well it sticks to other substances.
cohension of water is caused by hydrogen bonds



Read more: http://wiki.answers.com/Q/What_is_cohesion_of_water#ixzz1DyMRtbGb the ability to be a great solvent Water is a good solvent due to its polarity. The solvent properties of water are vital in biology, because many biochemical reactions take place only within aqueous solutions Water is a good solvent due to its polarity. The solvent properties of water are vital in biology, because many biochemical reactions take place only within aqueous solutions
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