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Campbell AP Biology--CHAPTER 3 Flashcards

terms along with vital information covering Campbell's 6th edition Biology textbook

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7343268989polar covalenttype of bond in water? Oxygen is more electronegative than hydrogen and the electrons of the polar bonds spend more time near oxygen thus, making oxygen more negativity charged and hydrogen more positively charged0
7343268990Cohesionholding a substance together1
7343268991Adhesionclinging of a substance to another2
7343268992Capillary actionthe attraction of the surface of a liquid to the surface of a solid, which causes the liquid to rise or fall Capillary action is the ability of a liquid to flow in narrow spaces without assistance. It occurs because of intermolecular forces between the liquid and surrounding solid surfaces. If the diameter of the tube is sufficiently small, then the combination of surface tension (which is caused by cohesion within the liquid) and adhesive forces between the liquid and container wall act to propel the liquid. When adhesion > cohesion, capillary action occurs.3
7343268993Surface TensionA measure of how difficult it is to break/stretch a surface4
7343268994Kinetic Energyenergy of motion5
7343268995Heattotal kinetic energy due to molecular motion6
7343268996Calorieamount of heat it takes to move 1 gram of substance 1 degree Celsius higher7
7343268997Temperatureintensity of heat due to average kinetic energy8
7343268998Specific heatamount of heat needed to be absorbed /lost to change the temperature by 1 degree Celsius water has a high _____.9
7343268999water1 calorie/1 gram/I degree Celsius is the specific heat of ____.10
7343269000Evaporative coolingremains of a liquid cool down11
7343269001vaporizationamount of heat needed to turn liquid into gas12
7343269002evaporationprocess of liquid becoming gas13
7343269003How does the density of water contribute to aquatic life?if ice sank, ponds/oceans/lakes would freeze solid, killing the life (during the summer only top would thaw) instead the floating ice insulates liquid water from below preventing it from freezing and killing animals14
7343269004solutionliquid completely homogeneous of two or more substances15
7343269005solventdissolving agent16
7343269006solutesubstance dissolved17
7343269007aqueous solutionwater is solvent18
7343269008hydration shellsphere of water molecules around dissolved ions19
7343269009hydrophobicwater hating substances20
7343269010hydrophilicwater loving substances21
7343269011molethe molecular weightof a substance expressed in grams (6.02 x 10^23)22
7343269012molarityconcentration measured by number of mols/liter of solution23
7343269013hydrogen ionH+24
7343269014hydroxide ionOH-25
7343269015hydronium ionH30+26
7343269016acidsincrease H+ concentration27
7343269017basesreduce H+ concentration28
7343269018pH scalemeasures concentration of H+ (scale from 1-14)29
7343269019bufferssubstance that minimizes changes in H+/OH- concentration30
7343269020acid precipitationpresence of sulfur oxides/nitrogen oxides and gaseous compounds react with air and goes into lakes, oceans, and soil, affecting animal life31

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