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chapter 2 section 3

water and solutions

polar the uneven distribution of charge
hydrogen bond 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
cohesion an attractive force that holds molecules of a single substance together
adhesion the attractive force between two particles of different substances, such as water molecules and glass molecules
capillarity the attraction between molecules that result in the rise of the surface of a liquid when in contact with a solid
solution a mixture in which one or more substances are uniformly distributed in another substance
solvent the substance in which the solute is dissolved
concentration the amount of solute dissolved in a fixed amount of the solution
saturated solution one in which no more solute can dissolve
aqueous solution solutions in which water is the solvent- are universally important to living things
hydroxide ion the OH negative ion
hydronium ion the H(subscript 3)O positive
acid if the number of hydronium ions in a solution is greater than the number of hydroxide ions
base the solution that contains more hydroxide ions than hydronium ions
pH scale ranges from 0-14 a scale from comparing the relative concentrations of hydronium ions and hydroxide ions in a solution
buffer chemical substances that neutralize small amounts of either an acid or a base added to a solution
solute a substance dissolved in the solvent
Created by: campbellm19