exam II review 2

exam II review 2 - CHEMISTRY 1201 Sample Examination II...

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CHEMISTRY 1201 Time allowed: 75 minutes 1) Consult the Table above and decide which of the following substances is(are) soluble ? (i) ammonium sulfide (ii) calcium phosphate (iii) lead(II) sulfate (iv) sodium nitrate (v) nickel(II) hydroxide A) all are soluble B) (i), (ii), (iii) and (iv) C) (i) and (iv) only D) (ii), (iii) and (v) only E) (iv) only 1
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2) Which of the following qualify as strong electrolytes ? (i) HClO 4 (aq) (ii) Sr(OH) 2 (aq) (iii) H 2 CO 3 (aq) (iv) CO 2 (g) (v) H 2 O( l ) A) (i) and (ii) only B) (iii) and (iv) only C) (v) only D) (ii) only E) (iii), (iv) and (v) only 3) What is the net ionic equation for the following “molecular” reaction: 2 HNO 2 (aq) + Ba(OH) 2 (aq) Ba(NO 2 ) 2 (aq) + 2 H 2 O( l ) A) 2 HNO 2 (aq) + Ba(OH) 2 (aq) Ba(NO 2 ) 2 (aq) + 2 H 2 O( l ) B) 2 H + (aq) + 2 NO 2 - (aq) + Ba(OH) 2 (aq) Ba 2+ (aq) + 2NO 2 - (aq) + 2 H 2 O( l ) C) 2 H + (aq) + Ba(OH) 2 (aq) Ba 2+ (aq) + 2 H 2 O( l ) D) HNO 2 (aq) + OH - (aq) NO 2 - (aq) + H 2 O( l ) E) There is no reaction – all ions cancel out! 4) The diagram to the right represents an aqueous solution of one of the following compounds. Which solution does it best represent? A) K 2 SO 4 B) KCl C) MgCl 2 D) C 2 H 5 OH (ethanol) E) C 6 H 12 O 6 (glucose) 5) Predict products of the following reaction: Ba(NO 3 ) 2 (aq) + Na 2 SO 4 (aq) A) 2 NaNO 3 (aq) + BaSO 4 (s) B) 2 NaNO 3 (aq) + BaSO 4 (aq) C) 2 NaNO 3 (s) + BaSO 4 (aq) D) BaNa 2 (aq) + (NO 3 ) 2 SO 4 (s) E) Na 2 Ba(s) + SO 4 (NO 3 ) 2 (aq) 2 + + + + + + + + 2- 2- 2- 2-
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exam II review 2 - CHEMISTRY 1201 Sample Examination II...

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