Water chemistry of water- no organism can survive/reproduce w/o water • carries no net charge or unpaired electrons • can form weak chemical associations w/ a fraction of covalent bonds' strength • oxygen atom portion has partial negative charge • hydrogen atoms portion have partial positive charge • polar molecules- has charge separation and partially charged poles • hydrogen bonds- very weak bonds that last for a short while between hydrogen atoms • cohesion- attraction between water molecules • adhesion- attraction between water molecules and other molecules • surface tension - causes water to cling together, allowing some insects to walk on it • capillary action - water rises in very narrow tubes due to adhesion heat storage in water- temperature measures how fast the molecules move • specific heat- energy needed to change 1 gram of a substance by 1 degree C • heats up more slowly than most compounds, holds heat longer • heat of vaporization
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This note was uploaded on 01/04/2012 for the course BSC BSC1005 taught by Professor Orlando,rebecca during the Fall '10 term at Broward College.