Gases
See included chemistry topics below:
Chemistry
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Book page:
http://course-notes.org/Chemistry
Molecular Orbital Theory
multiple bonds - overlap of p orbitals
Valence Bond Theory
bond polarity - measure of electron sharing
VSEPR
VSEPR model - valence-shell electron-pair repulsion model
Moleculary Geometry, Bonding Theories
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Bond Enthalpy
bond enthalpy - enthalpy change for breaking of a bond
- strength of covalent bond determined by amount of energy needed to break it
- always positive value
- DHrxn = (bond enthalpies of bonds broken) - (bond enthalpies of bonds formed)
- derived for gaseous molecules, only averaged values
Find the DH for 2C2H6 + 7O2>> 4CO2 + 6H2O
Lewis Structures
drawing Lewis structures -
Electronegativity, Dipole Moment
electronegativity - ability of atom in a molecule to attract electrons
Ionic/Covalent Bonding
chemical bond - attraction between atoms or ions
Basic Concepts of Chemical Bonding
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