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Chapter 2.3
Chapter 2.3 vocab
Term | Definition |
---|---|
polar | describes a molecule with opposite charges on opposite ends |
hydrogen bond | the inner molecular force occurring when a hydrogen atom that is bonded to a highly electro-negative atom of one molecule is attracted to two unshared atoms 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 | the attraction between molecules that results in the rise of a liquid in small tubes |
solution | a homogenous mixture throughout which 2 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 water molecule |
acid | any compound that increases the number of hydronium ions when dissolved in water |
base | any compound that increases the number of hydroxide ions when dissolved in water |
pH scale | a numeric scale used to determine to acidity or the basicity |
buffer | a solution made from a weak acid and its conjugate base that neutralizes small amounts of acids or bases added to it |