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Chemistry of Life

Vocabulary

TermDefinition
Mass Quantity of matter an object has.
Weight The pull of gravity on an object.
Element A pure substance made of only one kind of atom.
Compound A pure substance made up of atoms of two or more elements. Examples are water and carbon dioxide.
Energy Chemical bonds can store what?
Covalent Bonds Formed when two atoms share one or more pairs of electrons.
Polar Molecules Molecules with an unequal distribution of electrical charge.
Nonpolar Molecules Molecules with an equal distribution of electrical charge.
Ion `An atom or molecule that has gained or lost one or more electrons.
Cohesion An attraction between substances of the same kind. Water attracted to water.
Adhesion An attraction between different substances.
Solution A mixture in which 2 or more substances are uniformly distributed in another substance.
Solute The substance dissolved in the solution.
Solvent The substance in which the solute is dissolved.
Water The universal solvent.
Acids Release hydrogen ions in solution.
Bases Release hydroxide ions in solution.
Buffer Neutralize small amounts of either an acid or base added to a solution.
Created by: jphokie05