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ProbSet1key_000 - BILD 1 Practice questions for midterm 1...

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BILD 1 Practice questions for midterm 8/7/08 1) There are ________ 4 ______ (number) orbitals that comprise the second shell of electrons in an atom. 2) The maximum number of electrons that can occupy a single orbital: 2 3) Protons (hydrogen ions) in water actually exist as __ hydronium or H 3 O+ _______________ ions. 4) Compounds containing only hydrogen and carbon as known as ___ hydrocarbons ____________. 5) Draw the amino functional group. What properties does this functional group have? -NH2 it is basic, and gains a proton to become -NH 3 + 6) Give the generic name for the chemical reaction used for synthesizing polymers in a cell. (one word) Dehydration (reaction) Give the generic name for the reaction that breaks down polymers. (one word) Hydrolysis (reaction What molecule do these 2 processes have in common? H 2 O or water 7) Chlorine has an atomic number of 17 and a mass number of 35. How many electrons would a chloride ion have? 18 (a chloride atom has 17 electrons, and it gains one to form a chloride ion) 8) Which of the following atomic numbers describes the element that is the least reactive?
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