Predicting Single & Double Displacement Reactions

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Predicting Single Double Displacement Reactions

• By Jed Perron

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The Activity Series

• The Activity Series is used to predict the
  outcome of single displacement reactions
• The higher a metal is on the Activity Series, the
  more likely it will react with those below it
• A metal will not displace a metal higher on the
  activity series than itself

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The Activity Series Cont.

• The metals near the top are more reactive because
  their valence electrons are more easily removed
• H is the only nonmetal in the series, H2 may be
  displaced from acids or can be given off when a
  metal reacts with H2O producing H2 metal
  hydroxide

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The Activity Series Questions

• Which of these will react?
• K NaCl ? ???
• K NaCl ? Na KCl
• Al AgNO3 ? ???
• Al AgNO3 ? Ag AL(NO3)3
• Cu CaCO3 ? ???
• Cu CaCO3 ? Ca CuCO3
• Pb ZnO ? ???
• Pb ZnO ? No Rxn

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The Solubility Table

• The Solubility Table is used to predict the
  outcome of double replacement reactions

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The Solubility Table Cont.

• If both products of a double replacement reaction
  are soluble then no reaction occurs
• If at least one product of a double replacement
  reaction is solid then a reaction occurs
• A double displacement reaction involves two ionic
  compounds that are dissolved in water

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The Solubility Table Questions

• Which of these will react?
• NaCl (aq) Ba3(PO4)2 (s) ? ???
• NaCl (aq) Ba3(PO4)2 (s) ? No Rxn
• FeCO3 (s) CaCl (aq) ????
• FeCO3 (s) CaCl (aq) ? FeCl2 (aq) CaCO3 (s)
• LiNO3 (aq) MgBr2 (aq) ? ???
• LiNO3 (aq) MgBr2 (aq) ? No Rxn
• Zn(OH)2 (s) NiSO4 (aq) ? ???
• Zn(OH)2 (s) NiSO4 (aq) ? ZnSO4 (aq) Ni(OH)2
  (s)

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Works Cited

• http//en.wikipedia.org/