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

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Test II MULTIPLE CHOICE. (3 points each) 1) The charge on the manganese in the salt MnF 3 is __________. A) +1 B) +2 C) -2 D) +3 E) -1 2) Which formula/name pair is incorrect? A) FeS iron(II) sulfide B) FeSO 4 iron(II) sulfate C) FeSO 3 iron(II) sulfite D) Fe 2 (SO 3 ) 3 iron(III) sulfite E) Fe 2 (SO 4 ) 3 iron(III) sulfide 3) The name of PCl 3 is __________. A) monophosphorous trichloride B) phosphorus trichloride C) trichloro potassium D) phosphorous(III) chloride E) potassium chloride 4) Which one of the following is the formula of perchloric acid? A) HClO B) HClO 4 C) HClO 3 D) HCl E) HClO 2 5) When the following equation is balanced, the coefficient of water is __________. N 2 O 5 (g) + H 2 O (l) Æ HNO 3 (aq) A) 3 B) 2 C) 1 D) 4 E) 5 6) Of the reactions below, which one is a decomposition reaction? A) 2CH 4 + 4O 2 Æ 2CO 2 + 4H 2 O B) NH 4 Cl Æ NH 3 + HCl C) 2N 2 + 3H 2 Æ 2NH 3 D ) C d ( N O 3 ) 2 + Na 2 S Æ CdS + 2NaNO 3 E) 2Mg + O 2 Æ 2MgO 7) The formula weight of ammonium sulfate ((NH 4 ) 2 SO 4 is __________ amu. A) 132 B) 116 C) 118 D) 100 E) 264 8) The mass % of Al in aluminum sulfate, Al 2 (SO 4 ) 3 , is __________. A) 15.77 B) 35.94 C) 45.70 D) 7.886 E) 21.93 9) How many moles of carbon dioxide are there in 52.06 g of carbon dioxide? A) 3.134 x 10 25 B) 0.8452 C) 1.183 D) 8.648 x 10 23 E) 6.022 x 10 23 10) A sulfur oxide is 50.0% by mass sulfur. This molecular formula could be __________. A) SO
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key2(3) - CHEM 1211K Test II MULTIPLE CHOICE(3 points each...

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