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general chemistry phs 1015 spring 2012 practice exam 2b

general chemistry phs 1015 spring 2012 practice exam 2b -...

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General Chemistry PHS 1015 Spring 2012 Practice Exam 2B Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) How many carbon atoms are in the formula Al 2 (CO 3 ) 3 ? 1) _______ A) 1 B) 6 C) 9 D) 3 E) none of the above 2) How many oxygen atoms are in the formula Al 2 (CO 3 ) 3 ? 2) _______ 3) Choose the pair of names and formulas that do not match. 3) _______ 4) What is the formula for an ionic compound made of aluminum and oxygen? 4) _______ 5) What is the correct formula for the molecular compound heptaphosphorus octafluoride? 5) _______ A) P 6 F 7 B) P 5 F 8 C) P 7 F 6 D) P 7 F 8 E) none of the above 6) What is the formula for an ionic compound made of carbon and oxygen? 6) _______ 7) Which of the following compounds is INSOLUBLE? 7) _______
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8) Which of the following compounds is INSOLUBLE? 8) _______ 9) Which of the following compounds is SOLUBLE? 9) _______ A) strontium carbonate B) calcium carbonate C) copper carbonate D) potassium carbonate E) none of the above 10) Which of the following compounds is SOLUBLE? 10) ______ 11) All of the following compounds are soluble in water EXCEPT 11) ______ 12) If you had an aqueous mixture that contained Ag + , K + , and Pb + 2 cations, how many different solids could precipitate if a chloride solution was added? 12) ______ 13) In writing the chemical equation for a precipitation reaction, what abbreviation of the physical state must appear with one of the products? 13) ______ A) (s) B) (g) C) (w) D) (l) E) none of the above 14) What type of reaction is the generic equation ? 14) ______ 15) What type of reaction is the generic equation ? 15) ______
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