key3 - CHEM 1211K Test III MULTIPLE CHOICE (3 points each)...

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CHEM 1211K Test III MULTIPLE CHOICE (3 points each) 1) In the reaction below, H o f is zero for __________. Ni (s) + 2CO (g) + 2PF 3 (g) Ni(CO) 2 (PF 3 ) 2 (l) A) PF 3 (g) B) Ni(CO) 2 (PF 3 ) 2 (l) C) Ni (s) D) CO (g) E) both CO (g) and PF 3 (g) 2) A spectrum containing only specific wavelengths is called a __________ spectrum. A) line B) visible C) continuous D) intermittent E) invariant 3) The lines in the emission spectrum of hydrogen result from __________. A) protons given off when hydrogen burns B) electrons given off by hydrogen as it cools C) electrons given off by hydrogen when it burns D) decomposing hydrogen atoms E) energy given off in the form of visible light when an electron moves from a higher energy state to a lower energy state 4) According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the __________ of an electron. A) color B) mass C) momentum D) volume E) shape 5) Given the data in the table below, calculate the H o rxn for the reaction is ___________kJ. C 2 H 5 OH(l) + O 2 (g) CH 3 CO 2 H(l) + H 2 O(l) Substance D H o f (kJ/mol) C 2 H 5 OH(l) -277.7 O 2 (g) 0.0 CH 3 CO 2 H(l) -484.5 H 2 O(l) -285.8 A) -1048.0 B) -476.4 C)-492.6 D) -79.0 E) 0.0 6) There are __________ possible values for the magnetic quantum number of an electron in a 5f
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key3 - CHEM 1211K Test III MULTIPLE CHOICE (3 points each)...

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