Organic Chem Review

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Organic Chem Review
2011-12-20 08:19:46
Organic chemistry

Review for unit test- high school regents chemistry
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  1. Name three examples of natural polymers:
    3 natural polymers include cellulose, starch, cotton, DNA etc
  2. What type of reaction is shown here?
    This is substitution
  3. What is the name of this molecule?
  4. How many electrons are shared between the carbons in a molecule of ethene?
    4 electrons are shared (double bond)
  5. What is made in the process of saponification?
  6. What type of hydrocarbon is the reactant in an addition reaction?
    An alkene is the reactant in an addition reaction.
  7. What is the molecular formula for 2,2,4-trimethylpentane?
  8. Complete the blanks: Isomers have the same ______ formula but different _______ formulas.
    Isomers have the same molecular formula but different structural formulas.
  9. How many hydroxyl groups in the molecule glycerol?
  10. How many hydroxyl groups in a molecule of 1,2 ethandiol?
  11. Are all alcohols soluble in water? Explain
    Only short chain alcohols are soluble in water, longer carbon chains are not. This is because the carbon chain is nonpolar.
  12. What is meant by "water is a polar molecule"?
    Water has oppositely charged ends and is so called a polar molecule
  13. What is the name of the alcohol that is found in beer and wine?
  14. What substances when dissolved in water are good conductors of electricity?
    Acids and salts when dissolved are good conductors.
  15. Why are acids good conductors of electricity?
    Acids ionize in water to produce free moving charged particles
  16. What is a carboxyl group?
  17. What is the general formula for an ester?
    Ester: RCOOR
  18. What is the name of this cmpd?
    Ethyl butanoate
  19. What is the IUPAC name for formaldehyde?
  20. What is the minimum number of carbons in a ketone? (This is also known as acetone)
    Three carbons (propanone)
  21. What element is found in amines and amides that is not found in any of the other functional groups?
  22. An ester is the product of an ____ reacting with an ________.
    An ester is the product of an acid reacting with an alcohol.
  23. State the difference in the PRODUCTS of substitution vs. addition reactions
    Substitution produces two products while addition has only one product of the reaction
  24. What are the single units of a polymer called?
  25. What is the general formula of a polymer?
    (-X-) n