Exam 2 - Chem 201 75 Dr N J Stolowich 1. EXAM II name: _...

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Chem 201 – 75 EXAM II name: ____________________ Dr N J Stolowich October 14, 2006 1. (30 pts) CLEARLY indicate whether each of the following statements are ( T ) or ( F ) _____ At constant temperature and volume, the pressure a gas exerts on its container is directly proportional to the number of moles present _____ An oxidizing agent accepts electrons. _____ Higher molecular weight gases effuse slower then lower molecular weight gases. _____ When considering energy and work in a thermodynamic setting, a positive value means that the system releases energy or does work on the surroundings _____ The height of the mercury column in a barometer is a measure of the atmospheric pressure. _____ 2460 Joules would be required to raise the temperature of 100g of ethanol 10 o K . _____ The change in energy of a system is always negative when q is negative and w is positive. _____ Precipitation reactions always contain spectator ions _____ The equivalence point of an redox titration occurs when the mol of H + equals the mol OH - _____ Boyle’s Law shows that the volume of a fixed amount of gas at constant temperature is directly proportional to applied pressure. 2. (8 pts) For each reaction below, list the type of reaction (decomposition, combination, combustion or displacement) and circle whether or not the reaction is a redox reaction C 2 H 4 (g) + 3O 2 (g) 2 CO 2 (g) + 2H 2 O (g) ____________________, Y / N Li 2 O (aq) + CO 2 (g) Li 2 CO 3 (s) ____________________, Y / N
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This note was uploaded on 09/12/2008 for the course CHEM 201 taught by Professor Hoyt during the Spring '07 term at University of Louisville.

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Exam 2 - Chem 201 75 Dr N J Stolowich 1. EXAM II name: _...

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