MIDTERM10 S07

# MIDTERM10 S07 - BILD1 / Spring 2007 / MIDTERM 1 Dr. Kiger...

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BILD1 / Spring 2007 / MIDTERM 1 NAME: _________________________ Dr. Kiger BILD 1, Spring 2007 - MIDTERM EXAM #1 PRINT YOUR NAME LEGIBLY ON EVERY PAGE!! ALL STUDENTS READ THE FOLLOWING WAIVER: By signing this waiver, I give permission for this exam to be returned to me in class. This may expose my score to other students. If I do not sign this waiver, I acknowledge that this exam will not be returned in class but rather must be picked up no earlier than Tuesday, April 24 th in the office of Jennifer Roth in the Natural Sciences Building, Room 6316. Exams not picked up by the end of Spring quarter will be discarded. ___________________________________________ _________________________ (Student Signature) (Date) NAMES OF STUDENTS SITTING ON EITHER SIDE OF YOU: ____________________________________ ____________________________________ QUESTION: POINTS: 1. ________ (17 total) 2. ________ (17 total) 3. ________ (16 total) 4. ________ (16 total) 5. ________ (16 total) 6. ________ (17 total) 7. ________ (18 total) 8. ________ (17 total) 9. ________ (16 total) Extra Credit. ________ (10 possible) TOTAL ________ (150 points possible)

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BILD1 / Spring 2007 / MIDTERM 1 NAME: _________________________ Dr. Kiger PROBLEM 1. The Chemistry of Life (17 POINTS) 1. Name the four elements that make up 96% of living matter. (2 POINTS) 2. Write the valence (valency) for an atom for each of the four elements named above. (4 POINTS) 3. The atomic number of sodium (Cl) is 17. Therefore, an atom of chlorine: (1 POINT) ___A) has 1 electron in its outer shell. ___B) has 17 protons in its nucleus. ___C) has an atomic mass of 17 daltons. ___D) only A and B are correct. ___ E) A, B and C are correct. 4. If Cl gains an electron, what does it become? (1 POINT) 5. What do different elements with the same valence have in common? (1 POINT) ___A) They all exist in only one isotopic form. ___B) They all have an equal number of electrons. ___C) They all have the same number of electron shells. ___D) They all are inert. ___E) They all have an equal number of unpaired electrons in their outer shell. 6. List the four major types of chemical bonds discussed in class in the order of their increasing strength. (4 POINTS) 7. Briefly, why is water a polar molecule? (2 POINTS) 8. (2 POINTS) A(n) _________________ionizes in water and increases the concentration of hydrogen ions ([H+]). A(n) ________________ionizes in water and reduces the concentration of hydrogen ions ([H+]).
BILD1 / Spring 2007 / MIDTERM 1 NAME: _________________________ Dr. Kiger PROBLEM 2. Organic Compounds (17 POINTS) 1. What property of carbon atoms is the basis for the wide diversity of organic compounds? (2 POINTS) 2. Name two variable general features of carbon-based molecules. (2 POINTS) Answer the following questions on the compounds drawn below. NOTE: There may be one, none or multiple answers.

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## This note was uploaded on 08/28/2009 for the course BIO 10 taught by Professor Towb during the Fall '08 term at CSU Northridge.

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MIDTERM10 S07 - BILD1 / Spring 2007 / MIDTERM 1 Dr. Kiger...

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