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Chemistry!!

Chemistry!!. March 6, 2013 Ms. Boon. Objective: I can explain why we and all living things are made of carbon. Agenda: Catalyst Exit slip review HW review Exit Slip: Carbon Article: Nuclear power plants. Catalyst. Have you eaten any macromolecules today? What kind? .

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Chemistry!!

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  1. Chemistry!! March 6, 2013 Ms. Boon

  2. Objective: I can explain why we and all living things are made of carbon. • Agenda: • Catalyst • Exit slip review • HW review • Exit Slip: Carbon • Article: Nuclear power plants Catalyst • Have you eaten any macromolecules today? What kind? • Take out your HW!

  3. Exit Slip Review What are the names of the four macromolecules? A: protein, carbohydrate, lipid, nucleic acid What is the difference between a monomer and a polymer? A: A polymer is made of monomers. Monomers are small similar molecules that are linked together to form polymers. Polymers are long chains of monomers.

  4. Exit Slip Review 3. Give an example of the monomer and polymer for one of the macromolecules.

  5. Exit Slip Review … CH(NH3)CH2CH(NH3)CH2CH(NH3)CH2CH… Note: This exit slip counts toward standard 10a and #4 was not graded. #4 covers material that will be on the CST but not on BM #3. When propane (C3H8) is burned for fuel, what type of chemical reaction is this? Write the chemical reaction equation. C3H8 + 5 O2 3 CO2 + 4 H2O + heat 5. Identify the repeated sequence in the following molecule: A: CH(NH3)CH2 or (NH3)CH2CH or CH2CH(NH3)

  6. p.704 #8, 15; p. 706 #43, p. 742 #33, 34; p. 743 #43 – 48 (reading graphs) Homework Review P. 704 #8: What type of molecule results when many smaller units are joined in addition reactions? A: polymer #15: A: The relationship between the strength of a carbon-carbon single bond and the ability of carbon to be the basis of large molecules is that the c-c bond is stronger than most other covalent bonds. This means a molecule can have many c-c bonds and be stable. (answer on pp. 678)

  7. p.704 #8, 15; p. 706 #43, p. 742 #33, 34; p. 743 #43 – 48 (reading graphs) Homework Review P. 706 #43: Alcohols and organic acids are soluble in water because they have polar functional groups that can form hydrogen bonds with water. Hydrocarbons are all non-polar and do not form hydrogen bonds. (see p. 684-685 and Ch 13 p. 470) Ethanol – an alcohol Acetic acid Propane – a hydrocarbon

  8. p.704 #8, 15; p. 706 #43, p. 742 #33, 34; p. 743 #43 – 48 (reading graphs) Homework Review P. 742 #33 – label the following as a carbohydrate, an amino acid, or a nitrogenous base (answers throughout chapter 20) Cytosine – a nitrogenous base Maltose – a carbohydrate Cysteine – an amino acid

  9. p.704 #8, 15; p. 706 #43, p. 742 #33, 34; p. 743 #43 – 48 (reading graphs) Homework Review P. 742 #34: A: A condensation reaction is used to link the monomers together. (see pp. 718 for peptide bond formation; see pp. 715 for disaccharide formation; see pp. 726 for nucleic acids)

  10. p.704 #8, 15; p. 706 #43, p. 742 #33, 34; p. 743 #43 – 48 (reading graphs) Homework Review P. 743 43: The graph compares the proteins’ amino acid compositions by mole percentage. 44. Blue 45. Spider fibroin protein contains larger percentages of glycine and alanine amino acids. 46. The mole percentage of alanine in a-keratin is 5% and in fibroin is 30 % • The other amino acids must likely did not show large differences between the proteins • The strongest fiber would contain glycine and alanine because this is what the spider fibroin has the most of.

  11. Exit Slip • Expectations: • You will work silently and independently. • When you are done, cover your exit slip with your handouts. • Tools: • You may use all your notes, worksheets, and flash cards. • What do I turn in? • You will turn in your exit slip only. • Homework: • Complete the nuclear power reading and questions.

  12. Announcements • Grades: • Pinnacle grades are up to date except for the Reaction rates/Equilibrium worksheets and the short answer portion of the exam. • All make up work is graded and entered in pinnacle • Make up work: • To get your work in before the 10 week grading period, the last day to turn in make up work is Friday March 15. • Tutoring: • Tutoring is Friday at 3:45. • BM 3 study guide: • Bring a folder to our next class to collect your worksheets, old exams, and study guide.

  13. Article: Nuclear Energy

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