Chapter Three: Water
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| 200779334 | polar molecule | a molecule (such as water) with opposite charges on opposite sides | 0 | |
| 200779335 | cohesion | the binding together of like molecules, often by hydrogen bonds | 1 | |
| 200779336 | adhesion | the attraction between different kinds of molecules | 2 | |
| 200779337 | surface tension | a measure of how difficult it is to stretch or break the surface of a liquid | 3 | |
| 200779338 | kinetic energy | the energy of motion | 4 | |
| 200779339 | heat | the TOTAL amount of kinetic energy due to molecular motion in a body of matter; energy in its most random form | 5 | |
| 200779340 | temperature | a measure of the intensity of heat in degrees, reflecting the AVERAGE kinetic energy of the molecules | 6 | |
| 200779341 | Celsius scale | a temperature scale that measures the freezing point of water at 0 degrees and the boiling point of water at 100 degrees | 7 | |
| 200779342 | calorie | amount of heat energy required to raise the temperature of 1 g of water by 1 degree Celsius; also the amount of heat energy that 1 g of water releases when it cools by 1 degree Celsius | 8 | |
| 200779343 | kilocalorie | a thousand calories | 9 | |
| 200779344 | Joule | a unit of energy that equals 50.239 calories and what 1 calorie equals 54.184 of | 10 | |
| 200779345 | specific heat | the amount of heat that must be absorbed or lost for one gram of a substance to change its temperature by 1 degree Celsius | 11 | |
| 200779346 | heat of vaporization | the quantity of heat a liquid must absorb for 1 gram of it to be converted from the liquid to the gaseous state | 12 | |
| 200779347 | evaporative cooling | the property of a liquid whereby the surface becomes cooler during evaporation, owing to a loss of highly kinetic molecules to the gaseous state | 13 | |
| 200779348 | solution | uniform mixture of molecules of two or more substances | 14 | |
| 200779349 | solvent | the dissolving agent of a solution, the most versatile of which is water | 15 | |
| 200779350 | solute | a substance that is dissolved in a solution | 16 | |
| 200779351 | aqueous solution | a solution in which water is the solvent | 17 | |
| 200779352 | hydration shell | the sphere of water molecules around each dissolved ion | 18 | |
| 200779353 | hydrophobic | having an aversion to water; tending to coalesce and form droplets in water | 19 | |
| 200779354 | hydrophilic | having an affinity for water | 20 | |
| 200779355 | colloid | stable suspension of fine particles in liquid | 21 | |
| 200779356 | molecular mass | sum of all the masses of all the atoms in a molecule | 22 | |
| 200779357 | mole (mol) | the number of grams of a substance that equals its molecular weight in daltson and contains Avogadro's number of molecules | 23 | |
| 200779358 | molarity | a common measure of solute concentration, referring to the number of moles of solute per liters of solution | 24 | |
| 200779359 | acid | a substance that increases the hydrogen ion concentration of a solution | 25 | |
| 200779360 | base | a substance that reduces the hydrogen ion concentration of a solution | 26 | |
| 200779361 | buffers | a substance that consists of acid and base forms in a solution and that minimizes changes in pH when extraneous acids or bases are added to the solution | 27 | |
| 200779362 | acid precipitation | rain, snow, or fog that is more acidic than pH 5.6 | 28 |
