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READER 2A EXE - Copyright 2010 TOUPADAKIS CHEMISTRY READER 2A ADDITIONAL EXERCISES FOR UNITS 4-6 ADDITIONAL EXERCISES FOR UNITS 4-6 CONCEPTS(Select

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Copyright 2010 TOUPADAKIS CHEMISTRY READER 2A ADDITIONAL EXERCISES FOR UNITS 4-6 1 ADDITIONAL EXERCISES FOR UNITS 4-6 CONCEPTS (Select the best answer) 1. Choose the CORRECT statement. a. A non-electrolyte is a substance such as table salt. b. A strong electrolyte is partially ionized in water solution. c. A strong electrolyte in solution is a poor electrical conductor. d. A weak electrolyte in solution is a very good electrical conductor. e. A weak electrolyte is partially ionized in a water solution. 2. Complete the chemical equation below and indicate if a precipitate forms. Ag + (aq) + Cl - (aq) + NO 3 - (aq) + Na + (aq) a. AgCl(s) + Na + + NO 3 - b. AgNO 3 (s) + Na + + Cl - c. AgCl(s) + NaNO 3 (s) d. NaNO 3 (s) + Ag + + Cl - e. no reaction 3. Which is the oxidizing agent in the following chemical equation? CH 2 = CH 2 + H 2 CH 3 - CH 3 a. H 2 b. CH 3 -CH 3 c. CH 2 d. CH 2 =CH 2 e. there is no oxidizing agent 4. If gas pressure and number of molecules remain constant but the temperature is doubled: a. the volume becomes half b. the volume stays the same c. the average kinetic energy of the molecules decreases d. the molecules move slower e. none of these answers
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Copyright 2010 TOUPADAKIS CHEMISTRY READER 2A ADDITIONAL EXERCISES FOR UNITS 4-6 2 5. The law of partial pressures is also called the: a. Coulombs’ law b. Dalton's Law c. Graham's Law d. conservation of mass law e. ideal gas law 6. The pressure correction term in the van der Waals equation is present because: a. molecules are made from atoms b. molecules are moving c. molecules repel each other d. molecules occupy volume e. molecules attract each other 7. The unit of frequency is: a. Hz b. cycles/second c. s -1 d. kHz e. all of the above 8. We now believe that a subatomic particle has properties of a wave. That is referred to as: a. Pauli's Exclusion Principle b. The Aufbau Principle c. Hund's Rule d. The DeBroglie Relationship e. Heisenberg's Uncertainty Principle 9. Consider a valence electron of a calcium atom. Its quantum numbers could be: a. n = 4, l = 1, m l = 0, s = -1/2 b. = 6, l = 1, = 0, s = 1/2 c. = 4, l = 0, = 0, s = -1/2 d. = 6, l = 0, = 0, s = 1/2 e. = 5, l = 2, = 2, s = -1/2
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Copyright 2010 TOUPADAKIS CHEMISTRY READER 2A ADDITIONAL EXERCISES FOR UNITS 4-6 3 10. Which of the following solutions has the highest concentration of phosphate ion? a. 0.2 M AlPO 4 b. 0.2 M Ba 3 (PO 4 ) 2 c. 0.3 M Li 3 PO 4 d. 0.4 M K 2 NaPO 4 e. 0.3 M Cu 3 (PO 4 ) 2 11. Complete the following chemical equation and indicate if a precipitate forms: Cs + (aq) + Cl - (aq) + NO 3 - (aq) + K + (aq) a. CsCl(s) + NO 3 - + K + b. CsNO 3 (s) + K + + Cl - c. KCl(s) + Cs + + NO 3 - d. KNO 3 (s) + Cs + + Cl - e. no reaction 12. Which is the oxidizing chemical species in the following unbalanced chemical equation? Au + H
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This note was uploaded on 04/22/2011 for the course CHEM 2A taught by Professor Guo during the Fall '08 term at UC Davis.

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READER 2A EXE - Copyright 2010 TOUPADAKIS CHEMISTRY READER 2A ADDITIONAL EXERCISES FOR UNITS 4-6 ADDITIONAL EXERCISES FOR UNITS 4-6 CONCEPTS(Select

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