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7 Cards in this Set

  • Front
  • Back
covalent bond
chemical bond that results from the sharing of valance electrons
molecule
formed when two or more atoms bond covalently
lewis structure
use electron-dot diagrams to show how electrons are arranged in molecules
sigma bond
single covalent bonds
pi bond
formed when parallel orbitals overlap to share electrons
endothermic
reactons occur when a greater amount of energy is required break the existing bonds in the reactants than is released when the new bonds form in the product molecules
exothermic
reactions occur when more energy is released forming new bonds than is required to break bonds in the initial reactants.