AP Bio - Properties of Water Flashcards

7308150448	Hydrophilic	Substance that dissolves in water/water-loving (Polar or Ionic)	0
7308150449	Hydrophobic	Repels water/water-hating Ex. Oils, wax, butter, fats (nonpolar)	1
7308150450	Cohesion	ability of water to stick to itself	2
7308150451	Adhesion	ability of water to stick to other molecules	3
7308150452	High Specific Heat	takes a relatively large amount of energy to heat 1mL of water 1 degree Celcius	4
7308150453	High heat of vaporization	takes a relatively large amount of energy for water to evaporate because hydrogen bonds must be broken	5
7308150454	High Surface tension	due to cohesion, the surface of water forms a tight film that resists breaking	6
7308176127	Hydrogen bonds	Weak, temporary attractions between adjacent water molecules	7
7308177336	Polar Covalent Bonds	The bonds that hold a single water molecule together. Due to uneven electronegativity between hydrogen and oxygen	8
7308180216	Capillary Action	The attraction of water to the inside of thin tubes - causes water to move up the xylem of plants against gravity	9
7308192790	Acid	any compound that forms H+ ions in solution	10
7308197534	Base	A substance that decreases the hydrogen ion concentration in a solution. (picks up H+)	11
7308198991	Buffer	substances that cause a solution to resist change in pH	12
7493141191	Evaporative Cooling	A property of water whereby sweat uses the body's heat as its energy source to evaporate	13