Not an oil, water based

• oxygen dominates carbon
  
  • it takes a third carbon to become an oil / fatty acid
• 2 oxygen atoms 'outweigh' 2 carbon atoms
  • oxygen weights 16 each
    • 2*16=32
  • carbon weights 12 each
    • 2*12=24
      • oxygen (water) wins

The smallest oil, fatty acid

• carbon dominates oxygen
  • 3 carbon atoms 'outweigh' 2 oxygen atoms
    • 2 oxygen 2*16=32
    • 3 carbon 3*12=36
      • carbon (oil) wins

Fatty acids get longer,

• add carbon to the chain
  • saturated,
    • maximum hydrogen atoms
    • full or saturated
  • un-saturated,
    • 2 bonds, double, between carbons
    • less hydrogen atoms
    • not-full or un-saturated