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Biology Chap.2.3

Basic terms for Honors Biology, Grade 9

An uneven distribution of charge Polar
The force of attraction between a hydrogen molecule with a partial positive charge and another atom or molecule with a partial or full negative charge Hydrogen Bond
An attractive force that hold molecules of a single substance together Cohesion
The attractive force between two particles of different substances Adhesion
The attraction between molecules that results in the rise of the surface of a liquid when in contact with a solid Capillarity
A mixture in which one or more substances ae dissolved in another Solution
The substance dissolved in the solvent Solute
The substance with the solute is dissolved Solvent
The amount of solute dissolved in a fixed amount of the solution Concentration
A solution in which no more solute can dissolve Saturated Solution
Solutions in which water is the solvent Aqueous Solution
The ion developed when a molecule of water splits and it is known as OH- because of it's negative charge Hydroxide Ion
The ion developed when a molecule of water splits and, because it is H+, bonds with another water molecule to make H3O+ Hydronium Ion
When the number of hydronium ions in a solution is greater than the number of hydroxide ions Acid
When a solution contains more hydroxide than hydronium Base
The scale for comparing relative concentrations of hydronium ions and hydroxide ions in a solution pH Scale
Chemical substances that neutralize small amounts of either an acid or a base added to a solution Buffer
Created by: EmilyEdwards



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