key2a - A Chemistry 1211K Test II Multiple Choice (3 points...

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Chemistry 1211K Test II Multiple Choice (3 points each, place answer on the answer sheet) 1) Which one of the following is a nonmetal? A) Os B) Ir C) Br D) Sr E) W 2) An element that appears in the lower left corner of the periodic table is __________. A) definitely a metalloid B) either a metal or metalloid C) definitely a non-metal D) either a metalloid or a non-metal E) definitely a metal 3) An empirical formula always indicates __________. A) the smallest whole-number ratio of different atoms in a compound B) how many of each atom are in a molecule C) which atoms are attached to which in a molecule D) the geometry of a molecule E) the isotope of each element in a compound 4) Magnesium reacts with a certain element to form a compound with the general formula MgX. What would the most likely formula be for the compound formed between potassium and element X? A) K 2 X 2 B) K 2 X C) KX 2 D) K 2 X 3 E) KX 5) Which formula/name pair is incorrect? A) FeSO 3 iron(II) sulfite B) Fe 2 (SO 3 ) 3 iron(III) sulfite C) FeSO 4 iron(II) sulfate D) FeS iron(II) sulfide E) Fe 2 (SO 4 ) 3 iron(III) sulfide 6) The correct name for CCl 4 is __________. A) carbon chlorate B) carbon chloride C) carbon tetrachloride D) carbon tetrachlorate E) carbon perchlorate 7) When the following equation is balanced, the coefficient of oxygen is __________. ___PbS (s) + ___O 2 (g) Æ ___PbO (s) + ___SO 2 (g) A) 2 B) 1 C) 4 D) 5 E) 3 8) The formula weight of aluminum sulfate (Al 2 (SO 4 ) 3 ) is __________ amu. A) 342.14
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key2a - A Chemistry 1211K Test II Multiple Choice (3 points...

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