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covalent bond A chemical bond that results from the sharing of valence electrons.
molecule forms wheb two or more atoms covalently bond and is lower in potential energy than its constituent atoms.
lewis structure A model that uses eletron-dot structures to show how eletrons are arranged in molecules. Pairs of dots or lines represent bonding pairs.
sigma bond A single covalent bond that is formed when an electron pair is shared by the direct overlap of bonding oribitals.
pi bond A bond that is formed when parallel orbitals overlap to share electrons.
endothermic A chemical reaction in which a greater amount of energy is required to break the existing bonds in the reactants than is released when the new bonds form in the product molecules.
exothermic A chemical reactions in which more energy is released than is required to break bonds in the initial reaction.
oxyacid any acid that contains hydrogen and an oxyanion.
structural formula A molecular model that uses symbols and bonds to show relative positions of atoms; can be predicted for many molecules by drawing the lewis structure.
Created by: keana dillon