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UT CH 302 - Lecture notes
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Things to think about for Quiz 6 This is not the grand total of all the questions. This is to get you thinking. For each question you should try to dream up another similar question for the same group (or a different group). I have written many of these questions as T/F questions for the sake of time (rather than coming up with 4-5 other “bad” choices.) You should not expect quiz 6 to all be T/F I. Hydrogen What are two reactions for the formation of H2? Splitting water with electrolysis 2H2O(l) …> 2H2(g) + O2(g) Refroming methane with steam CH4(g) + H2O(g) …> CO(g) + 3H2(g) Why are the properties of H so different than those of the rest of group 1? If H gains 1 electron it has a nobel gas structure. Therefore it has a substantial electronegativity II. Alkali Metals T/F All alkali metals will react with acidic solution. T T/F All alkali metals will react with N2. F (only Li) T/F All alkali metals will react with water. T You make a basic solution by mixing water and A. NaH B. Na2O C. NaH and Na2O both yield basic solutions C In what form will I find nearly all the K atom on earth? KCl salt III. Alaki Earth Metals T/F To put out a Mg fire you can smother it with CO2 F Mg will reduce CO2 T/F Beryllium is typical found as a carbonateT/F CaO reacts violently with water to form an acidic solution F it will make a basic solution T/F Ca2+ has higher charge density than Na+. T III. Group III Aluminum is typically found on earth as a A. chloride B. oxide B C. sulfide D. carbonate B(OH)3 is a A. Strong base B. Weak base C. Strong acid D. weak acid D B(OH)3 is boric acid NaBH4 is a A. Strong reducing agent A B. Strong oxidizing agent C. neither IV. Group IV T/F Carbon is always found in a crystalline form with sp2 hybridized carbons F graphite has sp2 carbon, but diamond is sp3 T/F Silicon forms a crystal much like graphite F Silicon has a diamond structure To dope silicon into a “negative” form you can addA. Boron B. Carbon C. Phosphorous C P has an “extra” electron D. Xenon V. Group V The major industrial use of ammonia is as a___________. fertilizer T/F Nitrogen oxides play a major role in the formation of smog T Nitrogen is found mostly in A. Silicon Nitrides B. Salts in the ocean C. Sand D. Air D Most of the atmosphere is N2. Nitride are rare compounds Phosphorous is found mostly in A. Phosphates in rocks A B. Ocean salts C. Sand D. Air The manufacturing of ammonia from hydrogen and nitrogen is known as A. The Bayer Process B. The Haber Process B C. The Diels-Alder Reaction D. The Oswaldt Reaction VI Group VI T/F Sulfuric Acid can be used to dehydrate compounds T T/F One of the main uses of sulfuric acid is in the formation of useful phosphates TT/F Ozone is an allotrope of oxygen T VII Halogens T/F Halogen are excellent reducing agents F great oxidizing agents T/F Halogens are found in nature as diatomic molecules F always found as ions T/F Fluorine salts are less soluble because of the high charge density of F- T Most Cl2 is manufactured by A. Electrolysis of molten NaCl B. Reduction of CHCl3 C. Seperated from natural deposits of methane gas D. Oxidation of silicates Teflon is a halogenated compound containing A. Fluorine A B. Chlorine C. Bromine D. Iodine VIII Nobel gas The Nobel gases that are most likely to react form molecules are A. The smallest B. The most polarizable B C. The least polarizable D. Those with the largest dipole moment E. The most electronegative T/F Most nobel gases are found in minerals F All found as


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UT CH 302 - Lecture notes

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