bonding & hydrocarbon notes interactions of matter

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Bonding & Hydrocarbon Notes Interactions of Matter. 9/15/09. Review from Atomic Structure:. Define an atom. Describe the 3 sub-atomic properties. Ex. P (Phosphorus) State the # of p, n & e- in P: 15 P 31. - PowerPoint PPT Presentation

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  • Review from Atomic Structure:Define an atom.Describe the 3 sub-atomic properties.Ex. P (Phosphorus)State the # of p, n & e- in P: 15 P 31

  • Atoms will gain, lose, or share electrons in order to gain stability!Atoms need a FULL outer energy shell. 8 valence e-Full Octet Rule. Exception: H, it only needs 2 valence electrons.

  • BondsIonic Bonds: The transfer of electrons from one atom to another. The opposite charged atoms have a strong attraction.Example NaCl (Sodium Chloride) and LiO (Lithium Oxide).Na (2, 8, 1) 1 valence electronCl (2, 8 , 7) 7 valence electrons

  • Bonds2. Covalent Bonds: The sharing of electrons so both energy levels are filled.Very strong bond.Found in most living things

    BondsBonds

  • Single bonds: single pair of electrons is shared.Ex: H2O CH4

  • Double bonds: two pairs (4 electrons) are shared Example: CO2 or O2

  • Molecule: collection of two or more atoms. Example: C6H12O6 (Glucose)

  • Inorganic MoleculesDo not contain CarbonExamples: Water, minerals, salt, and sand.

  • Organic MoleculesCarbon-containing molecules2 Million different compoundsAbility to form strong and stable covalent bonds. Carbon chains -- unlimited lengthCarbon rings

  • HydrocarbonsCompound consisting of only carbon and hydrogenSimplest organic moleculeAlkane AlkeneAlkyne

  • Naming HydrocarbonsBased on the number of carbonsPrefixes:1 - Meth 2 - Eth3 - Prop4 - But5 - Pent6 - Hex7 - Hept8 - Oct9 - Non10 - Dec

  • Suffixes:-ane Single Bonds-eneDouble Bonds-yneTriple Bonds

  • How do we figure out the # of Hs & Cs????Formulas: n = Number of Carbons (C)-ane (all single bonds) CnH2(n) + 2-ene (double bond) CnH2(n) -yne (triple bond) CnH2(n) - 2

  • Ex: EthanePrefix Eth Suffix aneWhat do these tell us? 2 Carbons (surrounded by H)Single bonds

  • Using the formula for alkanes:CnH2(n) + 2Eth = 2 CarbonsC2H6

    Draw Ethane:

  • Try another PropaneUsing the formula for alkanes:CnH2(n) + 2Prop = 3 CarbonsC3H8

    Draw Propane:

  • One more PropeneUsing the formula for alkenes:CnH2(n) (One Double Bond!)Prop = 3 CarbonsC3H6

    Draw Propene:

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