CHE 112 Notes, Week 1
CHE 112 Notes, Week 1 CHE 112
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This 5 page Class Notes was uploaded by Madison West on Monday August 29, 2016. The Class Notes belongs to CHE 112 at Eastern Kentucky University taught by Jerome May in Fall 2016. Since its upload, it has received 25 views. For similar materials see General Chemistry II in Chemistry at Eastern Kentucky University.
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Date Created: 08/29/16
CHE 112 Notes August 22, 24, 26 Week 1 Ionic Bond A ourely electrostatic force of attraction between 2 spaces of opposite charge. - + Covalent Bond Bond Types: A shared pair of electrons (e-) localized between 2 non-metal atoms. 1) Metal & Non-metal 2) Metal & polyatomic anion H H 3) Polyatomic cations & Polyatomic Bond Types: anions 4) Polyatomic cations & nonmetal 5) Non-metal atoms Formula Units: MOLECULES the chemical formula +2 -2 Ca Co3 (crossing method) Ca 2CO 3 2 H O (crossing method) CaCO 3 H 2 1 1:1 H 2 EMPERICAL FORMULA 1:1 Ion Formation: EMPERICAL FORMULA By achieving the e- configuration of Sharing of e- (ionic bonds form by e- the nearest neighboring noble gas transfer) e- transfer REDOX CHE 112 Notes August 22, 24, 26 Week 1 Representing valence electron in molecular structures Bonding e- = roman numeral atop of each column (the DNA of a chemical family, group, column is the valence e- configuration. Molecules = Covalent bond Formula unit= ionic compounds empirical formula simplest whole # ratio LDS (Lewis dot structures) for ions CHE 112 Notes August 22, 24, 26 Week 1 3 Criteria Must Be Met: 1)E- count 2)Valence (expected number of bonds) 3)Octet-duet rule (octet elements in columns IVA thru VIIA) CHE 112 Notes August 22, 24, 26 Week 1 Now lets move onto shape… When identifying the shape of a structure, there are two things that need to be thought of to have different shapes; you should consider the electron set distribution and the overall shape. For Example: CHE 112 Notes August 22, 24, 26 Week 1 Valence Bond Theory (1931 Linus Pauling) Consequences: 1) Hybridization 2) Resonance
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