CHEMISTRY 100 Problem Set Chapter 4

Complete and balance the following acid-base reactions (neutralization reactions).

 1.  HI(aq) + KOH(aq) --->

 2.  H2SO4(aq) + NaOH(aq) --->

 3.  HBr(aq) + Ca(OH)2(aq) --->

 4.  HCl(aq) + Sr(OH)2(aq) --->

 5.  HNO3(aq) + Ba(OH)2(aq) --->

 6.  HClO4(aq) + LiOH(aq) --->

 7.  Na2CO3(aq) + HCl(aq) --->

 8.  Na2SO3(aq) + HCl(aq) --->

 9.  Na2S(aq) + HCl(aq) --->

10.  NaOH(aq) + NH4Cl(aq) --->

Complete and balance the following precipitation reactions. Indicate when no reaction takes place.

  1.  Na2S(aq) + ZnCl2(aq) --->

  2.  (NH4)2CO3(aq) + CaCl2(aq) --->

  3.  K3PO4(aq) + Sr(NO3)2(aq) --->

  4.  NaCl(aq) + Mg(NO3)2 --->

  5.  MgCl2(aq) + KOH(aq) --->

  6.  BaCl2(aq) + ZnSO4(aq) --->

  7.  Na2S(aq) + ZnCl2(aq) --->

  8.  KCl(aq) + NaNO3(aq) --->

  9.  CuSO4(aq) + Na3PO4(aq) --->

10.  K2CO3(aq) + AgNO3(aq) --->

Show the Molecular Equation, Complete Ionic Equation, and Net Ionic Equation for each of the following.

  1.  Pb(NO3)2(aq) + Na2SO4(aq) -->

  2.  (NH4)2CO3(aq) + CaCl2(aq) --->

  3.  HCl(aq) + NaOH(aq) --->

  4.  HNO3(aq) + Ca(OH)2(aq) --->

  5.  NaCl(aq) + AgNO3(aq) --->

  6.  MgCl2(aq) + AgC2H3O2(aq) --->


ANSWERS
Complete and balance the following acid-base reactions (neutralization reactions).

  1.    HI(aq) + KOH(aq) --> KI(aq) + H2O(l)

  2.    H2SO4(aq) + 2 NaOH(aq)--> Na2SO4(aq) + 2 H2O(l)

  3.    2 HBr(aq) + Ca(OH)2(aq) --> CaBr2(aq) + 2 H2O(l)

  4.    2 HCl(aq) + Sr(OH)2(aq) --> SrCl2(aq) + 2 H2O(l)

  5.    2 HNO3(aq) + Ba(OH)2(aq) --> Ba(NO3)2(aq) + 2 H2O(l)

  6.    HClO4(aq) + LiOH(aq) --> LiClO4(aq) + H2O(l)

  7.    Na2CO3(aq) + 2 HCl(aq) --> 2 NaCl(aq) + H2O(l) + CO2(g)

  8.    Na2SO3(aq) + 2 HCl(aq) --> 2 NaCl(aq) + H2O(l) + SO2(g)

  9.    Na2S(aq) + 2 HCl(aq) --> 2 NaCl(aq) + H2S(g)

10.    NaOH(aq) + NH4Cl(aq) ---> NaCl(aq) + H2O(l) + NH3(g)

Complete and balance the following precipitation reactions. Indicate when no reaction takes place.
  1.    Na2S(aq) + ZnCl2(aq) --> 2 NaCl(aq) + ZnS(s)

  2.    (NH4)2CO3(aq) + CaCl2(aq) --> 2 NH4Cl(aq) + CaCO3(s)

  3.    2 K3PO4(aq) + 3 Sr(NO3)2(aq) --> 6 KNO3(aq) + Sr3(PO4)2(s)

  4.    NaCl(aq) + Mg(NO3)2(aq)-->       NO REACTION

  5.    MgCl2(aq) + 2 KOH(aq) --> Mg(OH)2(s) + 2 KCl(aq)

  6.    BaCl2(aq) + ZnSO4(aq) --> BaSO4(s) + ZnCl2(aq)

  7.    Na2S(aq) + ZnCl2(aq) --> 2 NaCl(aq) + ZnS(s)

  8.    KCl(aq) + NaNO3(aq) -->    NO REACTION

  9.    3 CuSO4(aq) + 2 Na3PO4(aq) --> Cu3(PO4)2(s) + 3 Na2SO4(aq)

10.    K2CO3(aq) + 2 AgNO3(aq) --> 2 KNO3(aq) + Ag2CO3(s)

Show the Molecular Equation, Complete Ionic Equation, and Net Ionic Equation for the following.

  1.  Pb(NO3)2(aq) + Na2SO4(aq) --> PbSO4(s) + 2 NaNO3(aq)

       Pb2+(aq) + 2 NO31-(aq) + 2 Na1+(aq) + SO42-(aq) --> PbSO4(s) + 2 Na1+(aq) + 2 NO31-(aq)

       Pb2+(aq) + SO42-(aq) --> PbSO4(s)
 

  2.     (NH4)2CO3(aq) + CaCl2(aq) ---> 2 NH4Cl(aq) + CaCO3(s)

          2 NH41+(aq) + CO32-(aq) + Ca2+(aq) + 2 Cl1-(aq) ---> 2 NH41+(aq) + 2 Cl1-(aq) + CaCO3(s)

           Ca2+(aq) + CO32-(aq) ---> CaCO3(s)
 

  3.      HCl(aq) + NaOH(aq) ---> NaCl(aq) + H2O(l)

          H1+(aq) + Cl1-(aq) + Na1+(aq) + OH1-(aq) --> Na1+(aq) + Cl1-(aq) + H2O(l)

          H1+(aq) + OH1-(aq) ---> H2O(l)
 

  4.     2 HNO3(aq) + Ca(OH)2(aq) ---> Ca(NO3)2(aq) + 2 H2O(l)

        2 H1+(aq) + 2 NO31- + Ca2+(aq) + 2 OH1-(aq) --> Ca2+(aq) + 2 Cl1-(aq) + 2 H2O(l)

        H1+(aq) + OH1-(aq) ---> H2O(l)
 

  5.     NaCl(aq) + AgNO3(aq) ---> AgCl(s) + NaNO3(aq)

        Na1+(aq) + Cl1-(aq) + Ag1+(aq) +NO31-(aq) ---> AgCl(s) +Na1+(aq) + NO31-(aq)

        Ag1+(aq) + Cl1-(aq) ---> AgCl(s)
 

  6.     MgCl2(aq) + 2AgC2H3O2(aq) ---> 2AgCl(s) + Mg(C2H3O3)2(aq)

        Mg2+(aq) + 2Cl1-(aq) + 2Ag1+(aq) + 2C2H3O2 1-(aq) ---> 2AgCl(s) + Mg2+(aq) + 2C2H3O2 1-(aq)

        Ag1+(aq) + Cl1-(aq) ---> AgCl(s)