BMS 108 Quiz_1_Sp11_KEY

BMS 108 Quiz_1_Sp11_KEY - Name _KEY_ Lab Section (day/time)...

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Name __KEY______ Lab Section (day/time) ________________________ 108 Sp ’11 Quiz 1, 25 pts Underlined phrases in multipart answers were required for full credit. 1. (1pt) The state of internal dynamic constancy is best defined as __homeostasis__ . 2. (1 pt) How many hydrogen atoms does carbon need to bind with to fill its (carbon’s) valence (outermost) shell? (assume no double bonds) ___ 4 __ 3. (1 pt) True or False : If the number of protons in a solution increase the pH of the solution will also increase (ie. become a larger number). 4. (3 pts) What is a cation? Why do ions form (be specific- ie. how is it different form why covalent bonds form)? An ion with a positive charge (+1) that has lost an electron. Ions form because atoms want full outer shells and an electron gets transferred from one atom to another. Atoms that form ionic bonds are those that that only need to gain or lose one or 2 electrons. (0.5 pts extra credit for last point) 5. (5 pts) a) Define a covalent bond. b) Why do they occur? c) Compare and contrast polar and
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BMS 108 Quiz_1_Sp11_KEY - Name _KEY_ Lab Section (day/time)...

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