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Ch 2 se3

ch2s3

QuestionAnswer
Polar describes a molecule in which the positive and negative charges are separated
Hydrogen Bond the intermolecular force occurring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule is attracted to two unshared electrons of another molecule
Cohesion the force that holds molecules of a single material together
Adhesion the attractive force between two bodies of different substances that are in contact with each other
Capillarity a tiny blood vessel that allows an exchange between blood and cells in tissue
Solution a homogeneous mixture throughout which two or more substances are uniformly dispersed
Solute in a solution, the substance that dissolves in the solvent
Solvent in a solution, the substance in which the solute dissolves
Concentration the amount of a particular substance in a given quantity of a mixture, solution, or ore
Saturated Solution a solution that cannot dissolve any more solute under the given conditions
Aqueous Solution a solution in which water is the solvent
Hydroxide Ion the OH– ion
Hydronium Ion an ion consisting of a proton combined with a molecule of water; H3O+
Acid any compound that increases the number of hydronium ions when dissolved in water; acids turn blue litmus paper red and react with bases and some metals to form salts
Base any compound that increases the number of hydroxide ions when dissolved in water; bases turn red litmus paper blue and react with acids to form salts
pH Scale a value that is used to express the acidity or alkalinity (basicity) of a system; each whole number on the scale indicates a tenfold change in acidity; a pH of 7 is neutral, a pH of less than 7 is acidic, and a pH of greater than 7 is basic
Buffer a solution made from a weak acid and its conjugate base that neutralizes small amounts of acids or bases added to it
Created by: celesteb34
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