WHO IS AFFECTED? (PLUS CLIP) Seabirds covered in oil because of the oil spill… Beach areas closed because of unsafe water… Fisherman are affected because fish are no longer able to be sold! HOW DO WE FIX THIS?
WAYS TO FIX THIS PROBLEM In your notes: MAKE A LIST OF AS MANY WAYS AS YOU CAN THINK OF TO CLEAN UP THE OIL SPILL (1 minute)
MICROBES EAT HYDROCARBONS IN OIL What are hydrocarbons? What type of bond is in a hydrocarbon? What are the electrons doing in this bond?
How many valence electrons does carbon have? How many more electrons does carbon need to make a full shell? Carbon can make four bonds and this allows it to make long chains of hydrocarbons.
THE MOST COMMON HYDROCARBON:N-ALKANES N-Alkanes are single bonded hydrocarbons. n-alkanes Example of an N-Alkane (Methane) & (Decane)
D IFFERENT T YPES O F N-ALKANES The 10 simple hydrocarbons. 1 C = meth- 2 C = eth- 3 C = prop- 4 C = but- 5 C = pent- 6 C = hex- 7 C = hept- 8 C = oct- 9 C = non- 10 C = dec- Methane: Hexane:
EXAMPLES: Propane: Formula: Butane:Formula: C n H 2n+2
TRY BY YOURSELF: PENTANE Lewis Dot Structure: Formula:
WHITEBOARD: PRACTICE PROBLEMS Your microbe consume on n-octane for its nutrients and energy to survive. Draw a Lewis Dot structure for n-octane and find the molecular formula. Your microbe consume on n-Butane for its nutrients and energy to survive. Draw a Lewis Dot structure for n-butane and find the molecular formula. Your microbe consume on n-nonane for its nutrients and energy to survive. Draw a Lewis Dot structure for n-nonane and find the molecular formula.
A SSIGNMENT Work on the hydrocarbon practice worksheet. Also work on the word search that contains important key terms that were presented in this presentation.