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Posted: July 17th, 2024
C-14 undergoes beta decay to form what nucleus
13. C-14 undergoes beta decay to form what nucleus?A. B-13B. B-15C. N-14D. N-15E. B-1414. What is the IUPAC name for the following compound?A. 4,6,8-trimethylnonaneB. 2,4 -dimethylnonaneC. 2,4,6-trimethylnonaneD. 4,6,8-methylnonaneE. none of these15. Classify the following molecule:OCH3 - CH2 - CH2 - C O -CH3A. esterB. etherC. aldehydeD. ketoneE. carboxylic acid16.A chemical reaction is most likely to be spontaneous if it is accompanied byA) increasing energy and increasing entropyB) lowering energy and increasing entropyC) increasing energy and decreasing entropyD) lowering energy and decreasing entropyE) none of these (A-D)17.Assume that the enthalpy of fusion of ice is 6020 J/mol and does not vary appreciably over thetemperature range 270-290 K. If one mole of ice at 0°C is melted by heat supplied fromsurroundings at 276 K, what is the entropy change in the surroundings, in J/K?A) 22.1B) 21.8C) 0.0D) â21.8E) â22.118.If the change in entropy of the surroundings for a process at 431 K and constant pressure is â326 J/K,what is the heat flow absorbed by for the system?A) 326 kJB) 1.32 kJC) â141 kJD) 105 kJE) 141 kJ
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