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except: responders, blank paper ( headed Std 1 Quiz Notes ), pencil

RESPONDERS. 12/5/2011 Standards : 1 (Str of Atom) and O bjectives : 2 (Chem Bonds) a. Test for understanding – Std 1 – Structure of the Atom b. Be able to draw at least 1 Lewis Structure for a covalent molecule D O NOW :

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except: responders, blank paper ( headed Std 1 Quiz Notes ), pencil

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  1. RESPONDERS 12/5/2011 Standards: 1 (Str of Atom) and Objectives: 2 (Chem Bonds) a. Test for understanding – Std 1 – Structure of the Atom b. Be able to draw at least 1 Lewis Structure for a covalent molecule DO NOW: Get responders, after paper pick-up, & stamping Clear desks of everything HOMEWORK: 1. ChemThink.com - Molecular Shapes Tutorial take careful notes (3 pts) Molecular Shapes Question Set (7 pts). (total 10 pts) Std 2 (due 12/8) 2. PRINTPolarity in Bonds vs Polarity in Molecules (1 pts) Std 2 3. PRINTMOLECULAR GEOMETRY, LEWIS STRUTURES AND VSEPR - lab for Wednesday (1 pts) Std 2 =========================================================== STAMPS: Journal 12/1 (Th) 1. Page 244 PP's 1-5 (Lewis Structures) (5 pts) Std 2 On-Line ChemThink.com - Covalent Bonding Tutorial and Questions should be completed before mid-night tonight. except: responders, blank paper (headed Std 1 Quiz Notes), pencil

  2. Lewis Structures For Covalent Molecules Std 2 Atoms Valence Electrons Lewis Structure H2O O O H2 formula H H Total bonding Unshared A bonding pair of electrons = Check 2 things to have a correct Lewis Structure 1. Every atoms has 8 electrons except H (only needs 2) 2. Total electrons in Lewis Structure = total of all valence electrons from the individual atoms.

  3. 12/6/2011 Standards: 2(Chemical Bonds) Objectives: a. Std 1 Quiz (40 pts) b. Be able to draw Lewis Structures for covalent molecules (who is central atom). c. Be able to use VSEPR to predict shapes (5) of molecles c. Be able to perform LAB - Molecular Geometry, Lewis Str & VSEPR. DO NOW: 1. Clear desks and floors - keep responders and blank paper for scratch 2. The Lewis Structures for these molecules: Cl2 Br2 PCl3 3. Define VSEPR (what each letter means and what the theory states). HOMEWORK: NONE - watch vids on-line to help understand drawing Lewis Str. ====================================================== STAMPS: NONE RESPONDERS

  4. 12/7/2011 Standards: 2 (Chemical Bonds) Objectives: a. Be able to draw Lewis Structures for covalent molecules. b. Be able to use VSEPR to predict shapes (5) of molecules c. Be able to perform LAB - Molecular Geometry, Lewis Str & VSEPR. DO NOW: 1. p. 255-257 30, 32, 34 HOMEWORK: 1. p. 255-257 PP's 30-38 (5 pts) Std 2 2. Read through lab at least once and be sure you understand the 3 reasons for molecular shapes ======================================================== STAMPS: Journal 12/5 & 12/6 1. PRINTPolarity in Bonds vs Polarity in Molecules (1 pts) Std 2 2. PRINTMOLECULAR GEOMETRY, LEWIS STRUTURES AND VSEPR – lab (1 pts) Std 2 ANNOUNCEMENTS: Mr. Wigger & son Jacob will only perform on Friday night. Will give you preview today (end of period). linear bent trigonal planar trigonal pyramid tetrahedral

  5. This is how we get more than one bond - WE ARE OUT OF ELECTRONS 1. basic layout 2. put in bonding electrons Total valence electrons Subtract bonding electrons total left for the rest of the Lewis Structure 3. add in leftovers Not enough to go around N doesn't have 8 1. H has 2, C has 8, N has 8 4. Start Sharing Total electrons = 8 5. more sharing N still doesn't have enough electrons

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  7. TN 12/8/2011 Standards: 2 (Chemical Bonding) Objectives: a. Prep for tomorrow's lab - MOLECULAR GEOMETRY, LEWIS STRUCTURES AND VSEPR - Zum (computer) b. Be able to identify all 5 shapes from the VSEPR theory c. Be able to predict shape based on central atom having share or unshared DO NOW: 1. Draw Lewis Structures for BeBr2 SO2 CO2 Show columns 3-5 HOMEWORK: 1. Memorize Ions Quiz 3 coming next Tuesday. Start studying. 16 ions will be on this quiz. 2. PRINTLewis Structures and Molecular Geometry - Ball & Stick (Shapes) (1 pts) Std 2 ===================================================== STAMPS: Journal 12/7 1. Ch 9.3, PP's p. 255-257 #30-38 (5 pts) Std 2 ANNOUNCEMENTS: ChemThink.com - Molecular Shape tutorial and questions due tonight by mid-night linear bent trigonal planar trigonal pyramid tetrahedral Teacher Notes Explanations will be given by models (show all shapes in 3-D), magnets to demo effects of unshared pairs, and game

  8. As a Man thinketh, so is he. By: Tim Allen

  9. Lazy thoughts crystallize into habits of uncleanness and dishonesty. This solidifies into circumstances of foulness and begging. 16:50

  10. Molecular Shapes 2. Trigonal Planar 1. Linear O O 8 Remember that all atoms want ____ valence electrons. N

  11. Molecular Shapes 3. Tetrahedral 4. Trigonal Pyramidal 5. Bent

  12. does not haveunshared pairs on central atom does haveunshared pairs on central atom

  13. 12/9/2011 Standards:2 (Chemical Bonding) Objectives: (20 pts) a. LAB - Lewis Structures and Molecular Geometry - Zum - Copy FORMULAS of all molecules before starting lab. DO NOW: 1. Read lab SILENTLYPay special attention to #5 HOMEWORK: 1. Ch 9.4 p. 262 49-52. DO NOT FOLLOW DIRECTIONS IN TEXT. Draw Lewis Structure & show total valence electrons & shape as you will do in today's lab. 2. Lab - Lewis Str & Molecular Geo - Ball & Stick (Shapes) (1 pt) Std 2 3. Remember Memorize Ions 3 next Wed - All 13 ions and first 3 acids (15 points) ============================================================ STAMPS: NONE linear bent trigonal planar trigonal pyramid tetrahedral LAB WILL BE DUE ON MONDAY

  14. see page 260 for shapes Unshared pairs are the name of the game

  15. no teardrops = no unshared pairs Page 260 unshared pair impossible teardrop = unshared pair teardrop = unshared pair teardrop = unshared pair

  16. does not haveunshared pairs on central atom does haveunshared pairs on central atom

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