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AP Bio - Properties of Water Flashcards

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7308150448HydrophilicSubstance that dissolves in water/water-loving (Polar or Ionic)0
7308150449HydrophobicRepels water/water-hating Ex. Oils, wax, butter, fats (nonpolar)1
7308150450Cohesionability of water to stick to itself2
7308150451Adhesionability of water to stick to other molecules3
7308150452High Specific Heattakes a relatively large amount of energy to heat 1mL of water 1 degree Celcius4
7308150453High heat of vaporizationtakes a relatively large amount of energy for water to evaporate because hydrogen bonds must be broken5
7308150454High Surface tensiondue to cohesion, the surface of water forms a tight film that resists breaking6
7308176127Hydrogen bondsWeak, temporary attractions between adjacent water molecules7
7308177336Polar Covalent BondsThe bonds that hold a single water molecule together. Due to uneven electronegativity between hydrogen and oxygen8
7308180216Capillary ActionThe attraction of water to the inside of thin tubes - causes water to move up the xylem of plants against gravity9
7308192790Acidany compound that forms H+ ions in solution10
7308197534BaseA substance that decreases the hydrogen ion concentration in a solution. (picks up H+)11
7308198991Buffersubstances that cause a solution to resist change in pH12
7493141191Evaporative CoolingA property of water whereby sweat uses the body's heat as its energy source to evaporate13

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