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chapter 2.3

Vocabulary

TermDefinition
polar describes a molecule with opposite charges on the opposite ends.
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 Two substances stick to each other
capillarity the attraction between molecules that results in the rise of a liquid in small tubes.
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.
acid any compound that increases the number of hydronium ions when dissolved in water; turn blue litmus paper red
base any compound that increases the number of hydroxide ion s when dissolved; turns red litmus paper blue
ph scale the range of values that are used to express the acidity or alkalinity of a system.
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: FarlowA20
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