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AP Biology Chapter 3 Flashcards

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10386067906Polar Covalent Bondcovalent bond were shared electrons are pulled closer to the more electronegative electron0
10386067907Polar MoleculeMolecule where the overall charge is not equally shared1
10386067908Cohesionlinking together two like molecules2
10386067909adhesionclinging of one substance to another3
10386067910Surface Tensionmeasure of how difficult to stretch/break surface of liquid4
10386067911kinetic energyenergy of motion5
10386067912Heatform of energy6
10386067913tempertauremeasure of heat intensity representative average KE regardless of volume7
10386067914calorie (cal)amount of heat it take to raise 1g of water by 1 degree Celsius8
10386067915kilocalorie (kcal)1000 cal, quantity of heat required to raise the temperature of 1kg of water by 1 degree Celcuis9
10386067916joule (j)energy unit10
103860679171 J= ___ cal0.23911
103860679181 cal=___ J4.18412
10386067919specific heatamount of heat that must be absorbed or lost for 1g of that substance by 1 degree Celcuis13
10386067920vaporization (evaporation)liquid to gas14
10386067921Heat of Vaporizationquantity of heat a liquid must absorb for 1g of it to be converted from liquid to gas15
10386067922evaporative coolingprocess where an object becomes cooler during evaporation, result of molecules with higher KE changing from liquid to gas more quickly than others16
10386067923solutiona liquid that is completely homogeneous mixture of 2 or more substances17
10386067924solventdissolving agent of soln.18
10386067925solutesubstance that is being dissolved19
10386067926aqueous solutionone in which water is solvent20
10386067927hydrogen shellsphere of water molecules around each dissolved ion21
10386067928hydrophilicany substance that has a natural affinity for water22
10386067929colloidstable suspension of fine particles in liquid23
10386067930hydrophobicrepels water24
10386067931molecular masssum of masses of all atoms in molecule25
10386067932mole (mol)6.02*10^2326
10386067933molarity# of moles per solute per L of solution27
10386067934Hydrogen ion (H+)when a hydrogen atom in hydrogen bond shifts from one molecule to the other, it leaves its electron behind28
10386067935hydroxide ionwater molecule that lost a proton29
10386067936hydromuim ion (H3O+)protein binds to the other water molecule30
10386067937acidsubstance that raises the hydrogen ion concentration of a solution. 0-6 pH31
10386067938basesubstance that lowers the hydrogen ion concentration of a solution. 8-14 pH32
10386067939buffersubstance that minimizes the changes in concentrations of H+ and OH- in a solution33
10386067940ocean acidificationwhen CO2 reacts with water making it acidic34
10386067941acid precipitationrefers to rain, snow, or fog with a pH lower than 535

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