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Chem 1201 Sample Exam 2

Chem 1201 Sample Exam 2 - CHEMISTRY 1201 Examination...

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1 CHEMISTRY 1201 Examination II (Chapters 4-6) FALL 2008 Form 1 Time allowed: 75 minutes CALCULATORS ARE PERMITTED IN THIS EXAMINATION Encode your answers on the SCANTRON sheet with soft pencil. A Periodic Table is provided on the last page. Turn in the SCANTRON to the exam proctor. Encode 1 under Grade or Education on the scantron sheet 1) Consult the Table above and decide which of the following sulfides is(are) soluble ? (i) ammonium sulfide (ii) calcium sulfide (iii) lead(II) sulfide (iv) sodium sulfide (v) silver(I) sulfide A) all are soluble B) (i), (ii), (iii) and (iv) C) (i), (ii) and (iv) only D) (iii) and (v) only E) (iv) only
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2 2) Solutions of the following compounds were made. Which ones qualify as strong electrolytes ? (i) HNO 3 (ii) C 6 H 12 O 6 (iii) NH 3 (iv) (NH 4 ) 3 PO 4 (v) HClO A) (i) and (v) only B) (i) and (iv) only C) (ii) and (iii) only D) (ii), (iii) and (v) only E) (i), (iv) and (v) only 3) What is the net ionic equation for the following “molecular” reaction: 2 HNO 3 (aq) + Ca(OH) 2 (aq) Ca(NO 3 ) 2 (aq) + 2 H 2 O( l ) A) 2 HNO 3 (aq) + Ca(OH) 2 (aq) Ca(NO 3 ) 2 (aq) + 2 H 2 O( l ) B) 2 H + (aq) + Ca 2+ (aq) + 2 OH (aq) Ca 2+ (aq) + 2 H 2 O( l ) C) 2 H + (aq) + Ca(OH) 2 (aq) Ca 2+ (aq) + 2 H 2 O( l ) D) H + (aq) + OH (aq) H 2 O( l ) E) There is no reaction 4) Which of the following compounds: HX, HY or HZ best represents an aqueous solution of a strong acid ? A) none B) HX only C) HY only D) HZ only E) HX and HZ
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3 5) Predict products (including their correct phases) for the following reaction: CaCl 2 (aq) + 2 AgNO 3 (aq) A) Ca(NO 3 ) 2 (aq) + 2 AgCl(s) B) Ca(NO 3 ) 2 (s) + 2 AgCl(aq) C) CaAg 2 (aq) + 2 ClNO 3 (aq) D) CaCl 2 (aq) + 2 AgNO
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Chem 1201 Sample Exam 2 - CHEMISTRY 1201 Examination...

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