Chapter-9-template-2

Chapter-9-template-2 - Covalent Bonds Covalent compounds...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Covalent Bonds Covalent compounds >>> Ionic compounds Range from:
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Covalent Bonds F2: diatomic molecule F: F-:
Background image of page 2
Covalent Bonds Octet rule : Atoms (other than hydrogen) tend to form bonds to achieve 8 outer electrons (noble gas configuration) H only needs 2 outer electrons to achieve the electron configuration of helium. O2:
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Covalent Bonds N2: Shared pairs (bonding pairs) of electrons: Unshared pairs (lone pairs) of electrons:
Background image of page 4
Formation of covalent bonds
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Distribution of electron density in H2
Background image of page 6
Bond length : Bond energy : Bond order :
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Relation of Bond Order, Bond Length, and Bond Energy
Background image of page 8
For a given pair of atoms: For a given pair of atoms:
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Bond energies and heats of reaction ( H orxn) The heat released or absorbed during a chemical change: In a reaction: the bonds in reactant molecules are The bonds in product molecules are
Background image of page 10
H ° rxn = Σ∆ H ° reactant bonds broken+ Σ∆ H ° product bonds formed
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Overall exothermic reaction : Overall endothermic reaction :
Background image of page 12
Using bond energies to calculate rxn for the combustion of methane
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/20/2011 for the course CHEM 1035 taught by Professor Jgdillard during the Fall '07 term at Virginia Tech.

Page1 / 25

Chapter-9-template-2 - Covalent Bonds Covalent compounds...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online