Intro to Organic Chemistry
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Transcript of Intro to Organic Chemistry
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Intro to Organic Chemistry
Study of molecules with carbon-carbon bonds
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Organic & Inorganic Compounds
• All organisms are made up of organic and inorganic compounds
• Organic compounds–compounds that contain both carbon
and hydrogen–called organic because they are
mainly found in living things–Examples: enzymes, sugars, insulin
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Organic & Inorganic Compounds
• Inorganic compounds–compounds that do not contain
both carbon and hydrogen.–organisms do require certain
inorganic substances to survive–Examples: water, salts, acids and
bases
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• STOP & JOT: Explain the difference between organic and inorganic compounds
• Circle the molecule if it is organic, put a square around it if it is inorganic
H2O C6H12O6 CO2 NaCl C8H9NO2
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Carbon Bonding
• Carbon has four electrons in its outer energy level– It wants eight to achieve stability
• To fill its outer level it will form four covalent bonds with other carbon atoms or other elements
• STOP & JOT: Why is carbon so good at forming bonds?
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Carbon-Carbon Bonding
• Because carbon loves to bond to itself it can form many different arrangements
1. Ring 2. Straight3. Branched
ring
branchedstraigh
t
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Types of Bonding
• Carbon can form three types of bonds– Single bond: 2 atoms share 1
pair of electrons– Double Bond: 2 atoms share 2
pairs of electrons– Triple Bond: 2 atoms share 3
pairs of electrons
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Monomers & Polymers
• Monomers: small compounds, the “building block”– Monomers can be joined together to
form polymers • Polymers: large compounds formed by
monomers– Macromolecules: largest polymers
• Examples: Carbohydrates, Lipids, Proteins, Nucleic Acids
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Monomer
Polymer
STOP & JOT: The prefix mono means ___________. The prefix poly means ___________
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Monomers & Polymers
• Think about making houses– House are made from “bricks”– If you want to make different house,
you have to use different bricks
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Monomers & Polymers
• If you want to make different macromolecules you need to use different monomers (bricks)– Some monomers
(bricks) builds proteins other monomers(bricks) build lipids
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STOP & JOT: Arrange the following from smallest to largest--
• Polymer, atom, monomer, macromolecule, molecule
• Atom, molecule, monomer, polymer, macromolecule
• Circle the picture that represents the monomer and put a square around the picture that represents the polymer
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Building Larger Molecules
• Dehydration Synthesis (condensation reaction)
• Takes smaller, simpler molecules (monomers) and combines them to form larger, more complex molecules with the removal of one WATER molecule
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Dehydration Synthesis
STOP & JOT: In your own words, summarize a dehydration synthesis reaction
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Breaking Apart Large Molecules
• Hydrolysis Reactions• This involves adding water to break
apart large molecules into smaller ones.–This process can be repeated on
huge polymers until it has been entirely split into its monomer units
• STOP & JOT: How is hydrolysis different than dehydration synthesis?
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Keystone Quiz
Carbon is unique due to the carbon atom’sA. Six outer unpaired electrons.B. Bonding properties.C. Ionic compounds.D. Hydrogen bonding strength.