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2.3 Biology (JD)

Biology

TermDefinition
polar describes a molecule with opposite charges on opposite ends
solution a homogenous mixture throughout which two or more substances are uniformly dispersed
aqueous solution a solution in which water is the solvent
pH scale scale used for comparing the relative concentrations of hydronium ions and hydroxide ions in a solution
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
solute in a solution, the substance that dissolves in the solvent
hydroxide ion the OH- ion
buffer a solution made from a weak acid and its conjugate base that neutralizes small amounts of acids or bases added to it
cohesion the force that holds molecules of a single material together
solvent in a solution, the substance in which the solute dissolves
hydronium ion an ion consisting of a proton combined with a molecule of water; H30+
adhesion the attractive force between two bodies of different substances that are in contact with each other
concentration the amount of a particular substance in a given quantity of a mixture, solution, or ore
acid any compound that increases the number of hydronium ions when dissolved in water; acid turns blue litmus paper red and react with base sand some metals to form salts
capillarity the attraction between molecules that results in the rise of a liquid in small tubes
saturated solution a solution that cannot dissolve any more solute under the given conditions
base any compound that increases the number of hydroxide ions when dissolved in water; bases turns red litmus paper blue and react with acids to form salts
Created by: devolvej
 

 



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