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The diagram below illustrates a method of preparing salts by direct synthesis.
F2ET1chemQ4c

  1. This method can be used to prepare either aluminum chloride or iron (III) chloride. Explain. 
  2. What is the purpose of anhydrous calcium chloride? 

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  1. They do sublime
  2.  
    1. To prevent entry of moisture
    2. Iron (III) Chloride is hygroscopic
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