AP Biology Chapter 3 Flashcards
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| 7241189972 | Polar Covalent Bond | covalent bond were shared electrons are pulled closer to the more electronegative electron | 0 | |
| 7241189973 | Polar Molecule | Molecule where the overall charge is not equally shared | 1 | |
| 7241189974 | Cohesion | linking together two like molecules | 2 | |
| 7241189975 | adhesion | clinging of one substance to another | 3 | |
| 7241189976 | Surface Tension | measure of how difficult to stretch/break surface of liquid | 4 | |
| 7241189977 | kinetic energy | energy of motion | 5 | |
| 7241189978 | Heat | form of energy | 6 | |
| 7241189979 | tempertaure | measure of heat intensity representative average KE regardless of volume | 7 | |
| 7241189980 | calorie (cal) | amount of heat it take to raise 1g of water by 1 degree Celsius | 8 | |
| 7241189981 | kilocalorie (kcal) | 1000 cal, quantity of heat required to raise the temperature of 1kg of water by 1 degree Celcuis | 9 | |
| 7241189982 | joule (j) | energy unit | 10 | |
| 7241189983 | 1 J= ___ cal | 0.239 | 11 | |
| 7241189984 | 1 cal=___ J | 4.184 | 12 | |
| 7241189985 | specific heat | amount of heat that must be absorbed or lost for 1g of that substance by 1 degree Celcuis | 13 | |
| 7241189986 | vaporization (evaporation) | liquid to gas | 14 | |
| 7241189987 | Heat of Vaporization | quantity of heat a liquid must absorb for 1g of it to be converted from liquid to gas | 15 | |
| 7241189988 | evaporative cooling | process where an object becomes cooler during evaporation, result of molecules with higher KE changing from liquid to gas more quickly than others | 16 | |
| 7241189989 | solution | a liquid that is completely homogeneous mixture of 2 or more substances | 17 | |
| 7241189990 | solvent | dissolving agent of soln. | 18 | |
| 7241189991 | solute | substance that is being dissolved | 19 | |
| 7241189992 | aqueous solution | one in which water is solvent | 20 | |
| 7241189993 | hydrogen shell | sphere of water molecules around each dissolved ion |  | 21 |
| 7241189994 | hydrophilic | any substance that has a natural affinity for water | 22 | |
| 7241189995 | colloid | stable suspension of fine particles in liquid | 23 | |
| 7241189996 | hydrophobic | repels water | 24 | |
| 7241189997 | molecular mass | sum of masses of all atoms in molecule | 25 | |
| 7241189998 | mole (mol) | 6.02*10^23 | 26 | |
| 7241189999 | molarity | # of moles per solute per L of solution | 27 | |
| 7241190000 | Hydrogen ion (H+) | when a hydrogen atom in hydrogen bond shifts from one molecule to the other, it leaves its electron behind | 28 | |
| 7241190001 | hydroxide ion | water molecule that lost a proton | 29 | |
| 7241190002 | hydromuim ion (H3O+) | protein binds to the other water molecule | 30 | |
| 7241190003 | acid | substance that raises the hydrogen ion concentration of a solution. 0-6 pH | 31 | |
| 7241190004 | base | substance that lowers the hydrogen ion concentration of a solution. 8-14 pH | 32 | |
| 7241190005 | buffer | substance that minimizes the changes in concentrations of H+ and OH- in a solution | 33 | |
| 7241190006 | ocean acidification | when CO2 reacts with water making it acidic | 34 | |
| 7241190007 | acid precipitation | refers to rain, snow, or fog with a pH lower than 5 | 35 |