Q-20 
4. 
 
a)   For Part II, what color was the CH2Cl2 after Br2 was added to 0.10 M KCl?  
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Explain your observations including the appropriate half reactions.   
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b)   For Part II, what color was the CH2Cl2 after Br2 was added to 0.10 M KI?  
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Explain your observations including the appropriate half reactions.   
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5. 
 
a)   What would you expect to happen if Ag metal is mixed with Br
2(aq)
 in a test tube? 
 
 
 
Explain why.   
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b)    
If you add CH2Cl2 to this test tube (from 5a), what color would you expect the CH2Cl2 
layer to be?  Explain why, including the appropriate half reactions.   
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ASSESSMENT 
Performance 
  (1.0 mark): 
Observations Sheet 
    (1.0 marks): 
Laboratory Quiz 
   (8.0 marks): 
Deductions  
(if any):