key2(1) - CHEM 1211K Test II MULTIPLE CHOICE. (3 points...

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CHEM 1211K Test II MULTIPLE CHOICE. (3 points each) 1) Which one of the following substances is the product of this combination reaction? __ Al(s) + __ I 2 (s) __________ A) AlI 3 B) AlI C) Al 2 I 3 D) Al 3 I 2 2) The formula weight of aluminum sulfate (Al 2 (SO 4 ) 3 ) is __________ amu. A) 150.14 B) 59.04 C) 273.06 D) 342.14 3) How many moles of pyridine (C 5 H 5 N) are contained in 3.13 g of pyridine? A) 25.3 B) 0.319 C) 0.0396 D) 0.00404 4) Lead carbonate decomposes to give lead oxide and carbon dioxide: PbCO 3 (s) PbO(s) + CO 2 (g) How many grams of lead oxide will be produced by the decomposition of 0.00935mol of lead carbonate? A) 0.00936 B) 0.41 C) 2.09 D) 2.50 5) Pentacarbonyliron (Fe(CO) 5 ) reacts with phosphorous trifluoride (PF 3 ) and hydrogen, releasing carbon monoxide: Fe(CO) 5 + 2PF 3 + H 2 Fe(CO) 2 (PF 3 ) 2 (H 2 ) + 3CO The reaction of 5.0 mol of Fe(CO) 5 , 8.0 mol of PF 3 and 6.0 mol of H 2 will release __________ mol of CO. A) 5.0 B) 12 C) 15 D) 24 6) Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride: S(s) + 3 F 2 (g) SF 6 (g) In a particular experiment, the percent yield is 79.0%. This means that a 7.90-g sample of fluorine yields __________ g of SF 6 in the presence of excess sulfur. A) 7.99 B) 10.1 C) 0.110 D) 24.0 7) Of the species below, only __________ is not an electrolyte in water. A) HCl B) KOH C) Ar D) NaCl 8) The balanced molecular equation for complete neutralization of H 2 SO 4 by KOH in aqueous solution is __________. A) 2 H
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key2(1) - CHEM 1211K Test II MULTIPLE CHOICE. (3 points...

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