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CH 3 Prop of Water

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212608716cohesionattraction between molecules of the same substance
212608717adhesionan attraction between molecules of different substances
212608718specific heatthe heat required to raise the temperature of one gram of a substance one degree centigrade
212608719surface tensiona measure of how difficult it is to stretch or break the surface of a liquid
212608720heata form of energy that is transferred by a difference in temperature
212608721temperaturethe degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
212608722calorieunit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
212608723kilocaloriea unit of energy equal to 1000 calories
212608724heat of vaporizationthe amount of energy required for the liquid at its boiling point to become a gas
212608725evaporative coolingthe property of a liquid whereby the surface becomes cooler during evaporation, owing to a loss of highly kinetic molecules to the gaseous state.
212608726solutiona homogeneous mixture of two or more substances
212608727solutethe substance that is dissolved
212608728solventa liquid substance capable of dissolving other substances
212608729aqueous solutionsolution in which water is the solvent
212608730hydrophillicwater loving, molecules that are able to dissolve in water
212608731hydrophobicRepelling, tending not to combine with, or incapable of dissolving in water.
212608732mole (mol)the number of grams of a substance that equals its molecular weight in daltons and contains Avogadro's number of molecules
212608733pH(chemistry) p(otential of) H(ydrogen)
212608734hydrogen iona positively charged atom of hydrogen
212608735hydroxide ionnegatively charged ion made of oxygen and hydrogen (OH-)
212608736acidany of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
212608737baseany of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
212608738alkalineadjective that describes a substance that is a base
212608739bufferan ionic compound that resists changes in its pH
212608740saltan ionic compound that forms when a metal atom or a positive radical replaces the hydrogen of an acid
212608741pH scalemeasurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14
212608742acid precipitationrain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water

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