WARM UP 1.Write your own brief definition of the word “organic.” 2.What makes something organic?

The Big Bang Theory

Organic Base Chains Chemistry II

Organic Chemistry Study of organic molecules – Carbon compounds Focus on structural formulas

Organic Chemistry Deals mostly with hydrocarbons – Made of carbon and hydrogen – Useful in: Fuels Living cell structures (retina)

Base Chains A string of carbon and hydrogen – Aliphatic Straight chain (open or closed) – Aromatic Ring

Aliphatic Chains Alkanes – C n H 2n +2 – Single bonds – Saturated Full of hydrogen

Aliphatic Chains Alkanes con’t.. – Isomers Same atoms, different shape n- (straight) and iso- (T-shape) Cycloalkanes – End of chain connected in a ring

Aliphatic Chains Alkenes – C n H 2n – 1 or more C=C double bond – Unsaturated Could hold more H

Aliphatic Chains Alkenes con’t… – Isomers Position of double bond cis- or trans- – Sides chains off double bond are on – cis- = U-shape trans- = chair shape

Aliphatic Chains Alkynes – C n H 2n-2 – 1 or more C ≡ C triple bond

Aromatic Chains Made of benzene (6 C) rings – Alternating single and double bonds – Many rings can stick to each other

WRAP UP Draw… – An n-alkane – An iso-alkane – A cycloalkane – An alkene – An alkyne – An aromatic