Section 10.3 Reactions in Aqueous Solutions

Practice Test
      
  1.Na+aqis a _________________ in the following complete ionic equation.

H+aq+ Cl-aq+Na+aq+OH-aq→Na+aq+Cl-aq+H2Ol		  
  a.   reacting molecule  
  b.   spectator ion  
  c.   reacting compound  
  d.   participating ion  
  Hint    
      
  2.What is the complete ionic equation for the following chemical equation?

Cl2aq+Na2SO4aq →BaSO4s+2NaClaq		  
  a.   Ba2+aq + SO42-aq → BaSO4s  
  b.   Ba2+aq + Cl-aq + Na+aq + SO42-aq → Na+aq + Cl-aq + BaSO4s  
  c.   BaCl2aq + 2Na+aq + SO42-aq → 2Na+aq + 2Cl-aq + BaSO4s  
  d.   Ba2+aq + 2Cl-aq + 2Na+aq + SO42-aq → 2Na+aq + 2Cl-aq + BaSO4s  
  Hint    
      
  3.
Which of these is a spectator ion in the reaction 2NaOHaq + CuCl2 → 2NaClaq + CuOH2s?		  
  a.   Na  
  b.   Cl and Na  
  c.   Cu  
  d.   OH  
  Hint    
      
  4.In the chemical equation below, which of the components is a precipitate?

HClaq + AgNO3aq → AgCls + HNO3aq SC.A.1.4.5		  
  a.   AgCls  
  b.   HClaq  
  c.   AgNO3aq  
  d.   HNO3aq  
  Hint    
      
  5.Which of the following components will always be produced during a chemical reaction between an acid and a base? SC.B.1.4.2  
  a.   an acid  
  b.   a base  
  c.   a gas  
  d.   water  
  Hint    
      
  6.The components of a chemical equation that are left after the spectator ions are removed are the ____________.  
  a.   participating ions  
  b.   reactants  
  c.   products  
  d.   spectator ions  
  Hint    
      
  7.In the reaction below, which of the components will precipitate?

NaClaq+KBraq→KClaq+NaBraq SC.A.1.4.5		  
  a.   KBraq  
  b.   KClaq  
  c.   NaBraq  
  d.   none of the components precipitate  
  Hint    

 
   
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