Chemistry hw 2

Chemistry hw 2 - Chemistryhw2 1.

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Chemistry hw 2 1. Classify each of the following aqueous solutions as a nonelectrolyte, weak  electrolyte, or strong electrolyte. (a)  HNO 3   strong electrolyte  weak electrolyte      nonelectrolyte  (b)  I 2   weak electrolyte  nonelectrolyte      strong electrolyte  (c)  CsOH   strong electrolyte  weak electrolyte      nonelectrolyte  (d)  HClO 2   strong electrolyte  weak electrolyte      nonelectrolyte  (e)  AgNO 3   strong electrolyte 
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nonelectrolyte      weak electrolyte  (f)  glucose, C 6 H 12 O 6 strong electrolyte  nonelectrolyte      weak electrolyte  2. –/0.1 points 0/3 submissions Notes Indicate whether the following substances are likely to be soluble or  insoluble in water. (a)  Fe 2 O 3 insoluble  soluble       (b)  Au 2 (CO 3 ) 3 insoluble  soluble     
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(c)  Ba(NO 3 ) 2 insoluble  soluble       (d)  PbCl 2 soluble  insoluble      3. –/0.1 points 0/3 submissions Notes Which of the following solutions will form a precipitate when added to  Pb(NO 3 ) 2 Check all of the right answers. There may be more than 1 KNO 3 BaI 2 KOH NaC 2 H 3 O 2 NaCl Which of the following solutions will form a precipitate when added to  Ba(NO 3 ) 2 Check all of the right answers. There may be more than 1
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MgSO 4 NaC 2 H 3 O 2 KOH KNO 3 NaI Which of the following solutions will form a precipitate when added to  (NH 4 ) 2 S?  Check all of the right answers. There may be more than 1 KNO 3 ?CaCl 2 LiNO 3 AgNO 3 MgCl 2 4. –/0.1 points 0/3 submissions Notes Write balanced net ionic equations for the reactions that occur in each of  the following cases. Identify the spectator ion or ions in each reaction. Always put the cation first and the anion second.  For the net ionic  equations type your answer using the format Ga3+(aq) + 3OH-(aq) -> 
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Ga(OH)3(s) for Ga 3+ ( aq ) + 3 OH - ( aq )  Ga(OH) 3 ( s ). Note: The "arrow" is  made with the minus "-" and greater than ">" key. You must put the states  of matter (s), (l), (g), or (aq). Do not add any spaces to your equation. For  listing the spectator ions, use the format Ca2+, SO42- for the pair of ions  Ca 2+ , SO 4 2- . (a) Pb(NO 3 ) 2  ( aq ) + Na 2 SO 4  ( aq net ionic equation spectator ions (b) CuBr 2  ( aq ) + NaOH ( aq net ionic equation spectator ions (c) AgNO 3  ( aq ) + KI ( aq net ionic equation spectator ions Pb2+ (aq) + SO42- (aq) ---> PbSO4(s) spectator ions are sodium and nitrate Cu2+(aq) + 2OH-(aq) ---> Cu(OH)2 (s) spectator ions are bromine and sodium Ag+(aq) + I-(aq) ---> AgI(s) spectator ions are NO3 and K
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5. –/0.1 points
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This note was uploaded on 10/02/2011 for the course CHEM 1201 taught by Professor Cook during the Fall '08 term at LSU.

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Chemistry hw 2 - Chemistryhw2 1.

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