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Chemistry Project

Rebecca, Sarah, and Abby
by

Rebecca Green

on 13 November 2012

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Transcript of Chemistry Project

Forces Major Types of Bonds Ionic
Covalent
Metallic Chemical Bonding Project By: Sarah Stelzer, Abby Bass, and Rebecca Green Comparing and Contrasting the Bonds Examples Ionic: NaCl
Covalent: CO2
Metallic: Cu3Zn2 More About the Bonds valance configurations
isotopes Covalent:

-Bond formation
-Type of structure
-Physical state
-Melting point
-Electrical conductivity Metallic:

-Bond formation
-Type of structure Ionic
Van der Waals
Dipole Dipole
Hydrogen bonding A Few Unique Properties Ionic:
-crystals
-solid
-high melting point
-conduct electricity
-soluble in water Relating Strength & Physical Changes Ionic

Hydrogen

Dipole Dipole

Van der Waal Intermolecular Ranking of Strengths Ionic:
Covalent:
Metallic: Intermolecular Forces -Physical state
-Electrical Conductivity
-Melting point Ionic:

-Bond formation
-Type of structure
-Solubility in water -Solubility in water Covalent:
-odorous
-liquid or gas
-low melting point
-not conductors of electricity
-usually not soluble Metallic:
-malleable, ductile, lustrous
-liquid or gas
-low melting point
-not conductors of electricity
-usually not soluble We ranked these by saying the higher the melting point, the stronger the IMF is. As you can see, covalent and metallic bonds share a lot more in common than ionic bonds. Hydrogen: strong form of dipole-dipole caused by very polar covalent between an H and an N, O, or F. Dipole-Dipole: attraction between polar molecules; unequal sharing of electrons in a bond London Dispersion: random movement of electrons causing temporary dipoles, which cause attractions to other molecules. All substances are susceptible to these attractions
greater # of electrons --> greater potential for attraction Works Cited

"Chemical Bonding." Chemical Bonds. N.p., n.d. Web. 01 Nov. 2012. <http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/bond.html>.

Davies, Brad. Bonding Notes. N.d. Powerpoint Presentation. International Academy, Bloomfield Hills.

"Intermolecular Forces." Intermolecular Forces. N.p., n.d. Web. 01 Nov. 2012. <http://chemed.chem.purdue.edu/genchem/topicreview/bp/intermol/intermol.html>.

"Ionic Bonding." Ionic Bonding. Science for Kids, n.d. Web. 01 Nov. 2012. <http://scienceforkids.kidipede.com/chemistry/atoms/ionic.htm>.

"Metallic Bonding." Chem Guide. N.p., n.d. Web. 01 Nov. 2012. <http://www.chemguide.co.uk/atoms/bonding/metallic.html>.

N.d. Photograph. Chemistry. KentChemsitry. Web. 01 Nov. 2012. <http://www.kentchemistry.com/images/links/binding2/IonicL2.gif>.

"Physical Properties." Physical Properties. N.p., n.d. Web. 01 Nov. 2012. <http://www.elmhurst.edu/~chm/vchembook/160Aintermolec.html>. Strong IMF+Weak IMF= Melting
Weak IMF+None=Boiling Solid: Molecules are organized and dense. Very slightly compressible

Liquid: Disordered and less dense. Slightly compressible

Gas: Disorder and very low density. Highly compressible. Strongest Weakest
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