AP Chemistry
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Period ___ Date ___/___/___
Reactions in Aqueous Solution
SOLUBILITY RULES
Circle the ionic compounds that are soluble:
MgF2
CuSO4
NH4Cl
Fe(OH)3
CsF
AgCl
CdS
CuF2
PbSO4
Ba(OH)2
Na2SO4
NH4OH
Sr(NO3)2
Hg2I2
Na2CrO4
BaCO3
PbBr2
CaC2O4
HC2H3O2
MgO
Reactions in Aqueous Solution
IONIC EQUATIONS
For the following molecular equations, write the ionic equation and underline the spectators:
HF + NaOH  NaF + H2O
Reactions in Aqueous Solution
NET-IONIC EQUATIONS
Write the net-ionic equations for the following precipitation reactions:
Solutions of Pb(NO3)2 and KCl are mixed.
Pb(NO3)2(aq) + 2 KCl(aq)  PbCl2(s) + 2 KNO3(aq)
Pb2+ + 2 NO3- + 2 K+ + 2 Cl-  PbCl2(s) + 2 K+ + 2 NO3Pb2+ + 2 Cl-  PbCl2(s)
Solutions of Na2SO4 and CaBr2 are mixed.
Na2SO4(aq) + CaBr2(aq)  CaSO4(s) + 2 NaBr(aq)
2 Na+ + SO42- + Ca2+ + 2 Br-  CaSO4(s) + 2 Na+ + 2 BrSO42- + Ca2+  CaSO4(s)
Solutions of Fe2(SO4)3 and Na2S are mixed
Fe2(SO4)3(aq) + 3 Na2S(aq)  3 Na2SO4(aq) + Fe2S3(s)
2 Fe3+ + 3 SO42- + 6 Na+ + 3 S2-  6 Na+ + 3 SO42- + Fe2S3(s)
2 Fe3+ + 3S2-  Fe2S3(s)
Reactions in Aqueous Solution
OXIDATION NUMBERS
Determine the oxidation number of the underlined element:
Reactions in Aqueous Solution
1/2 REACTIONS
Write the balanced oxidation and reduction 1/2 reactions for each of the following reactions (beware of
spectator ions!)
Al(s) + AgNO3 (aq)  Al(NO3)3 (aq) + Ag(s)
Oxidation:
Al(s)  Al+3(aq) + 3e-
Reduction: Ag+(aq) + e-  Ag(s)
Mg(s) + Cu(NH4) 2 (aq)  Mg(NH4)2 (aq) + Cu(s)
Oxidation: Mg(s)  Mg+2 (aq) + 2eReduction: Cu+2(aq) + 2e-  Cu(s)
Reactions in Aqueous Solution
BALANCING REDOX (ACIDIC)
Balance the following equations in acidic solution:
Reactions in Aqueous Solution
BALANCING REDOX (BASIC)
Balance the following equations in basic solution: