key4 - CHEM 1211K Test IV MULTIPLE CHOICE (3 points each)...

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CHEM 1211K Test IV MULTIPLE CHOICE (3 points each) 1) Elements from opposite sides of the periodic table tend to form __________. A) covalent compounds B) ionic compounds C) compounds that are gaseous at room temperature D) homonuclear diatomic compounds 2) Lattice energy is __________. A) the energy required to convert a mole of ionic solid into its constituent ions in the gas phase . B) the energy given off when gaseous ions combine to form one mole of an ionic solid. C) the energy required to produce one mole of an ionic compound from its constituent elements in their standard states. D) the sum of ionization energies of the components in an ionic solid. 3) A double bond consists of __________ pairs of electrons shared between two atoms. A) 1 B) 2 C) 3 D) 4 4) Of the atoms below, __________ is the least electronegative. A) Rb B) F C) Si D) Cl 5) Of the bonds below, __________ is the least polar. A) Na-S B) P-S C) C-F D) Si-Cl 6) The ion NO - has __________ valence electrons. A) 15 B) 14 C) 16 D) 12 7) How many equivalent resonance forms can be drawn for SO 2 without expanding octet on the sulfur atom (sulfur is the central atom)? A) 0 B) 2 C) 3 D) 4 8) Using the table of average bond energies below, the H for the reaction is __________ kJ. HC C H HI H C C H I H + Bond: C= C C=C H-I C-I C-H D (kJ/mol): 839 614 299 240 413 A) +506 B) -931 C) -506 D) -129 9)
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This note was uploaded on 11/16/2011 for the course CHEM 1211k taught by Professor Wood during the Fall '07 term at Valdosta State University .

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key4 - CHEM 1211K Test IV MULTIPLE CHOICE (3 points each)...

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