Midterm1 Answer

Midterm1 Answer - BILD1 , WI08 Midterm I KEY NAME_...

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B I L D 1 , W I 0 8 M i d t e r m I K E Y Boulanger Page 1 of 17 NAME_______________________________ Waiver (please read): By signing this waiver, I give permission for this exam to be left near the elevators on the third floor of Pacific Hall for me to pick up. I realize that this may expose my grade to public scrutiny, and that the Division of Biological Sciences cannot be held responsible for exams which may be lost or stolen from this area. I understand that I may only pick up my own exam. If I do not sign this waiver, I understand that this exam will not be returned in class, but rather will be available no earlier than Friday, February 1 st in the office of Sutara Tang in Room 1100C of Pacific Hall. Exams not picked up by the end of Winter Quarter will be discarded. Regrade requests must be accompanied by a cover letter stating exactly the issues to be looked at and must be turned in to Dr. Boulanger by Friday, February 8 th . Signature__________________________________________ Names of students sitting on either side of you for one point (if no one is there, put “empty seat”, “wall”, or “aisle”): ______________________ ________________________ PROBLEM 1 __________/(15 pts) PROBLEM 2 __________/(13 pts) PROBLEM 3 __________/(8 pts) PROBLEM 4 __________/(10 pts) PROBLEM 5 __________/(9 pts) PROBLEM 6 __________/(11 pts) PROBLEM 7 __________/(13 pts) PROBLEM 8 __________/(10 pts) PROBLEM 9 __________/(10 pts) names __________/(1 point) full names needed! TOTAL __________/(100 pts)
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B I L D 1 , W I 0 8 M i d t e r m I K E Y Boulanger Page 2 of 17 1. Atoms and molarity (1 pt) Each element has atoms with a fixed: Atomic mass Atomic number (2 pt) Compared to 31 P, 32 P has (circle all that apply): More neutrons More protons More electrons Different valence Different atomic number Different atomic mass (1 pt) 31 P and 32 P are (circle all that apply): isotopes isomers polymers anions cations (2 pt) Given the following atoms: Which of the following is most likely to exist? B. In A, C is forming only 3 bonds, but needs 4. In C, there is an H forming two covalent bonds, and H can only form one.
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B I L D 1 , W I 0 8 M i d t e r m I K E Y Boulanger Page 3 of 17 In D, an O is forming only one bond, and needs two, AND an H is forming two bonds, but can only form one. (2 pt) The reactivity of an atom arises from (circle all that apply): The average distance of the outermost electron shell from the nucleus The existence of unpaired electrons in the valence shell The sum of the potential energies of all the electron shells The potential energy of the valence shell The energy difference between the s and p orbitals (2 pt) Which are soluble in water (circle all that apply)? a) Ionic compounds
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This note was uploaded on 04/25/2008 for the course BILD 1 taught by Professor Boulanger during the Winter '08 term at UCSD.

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Midterm1 Answer - BILD1 , WI08 Midterm I KEY NAME_...

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