Honors Chemistry
Name: _______________________________________ Date: ______________ Mods: ___________
Solubility & Electrolytes WS
1. Using solubility guidelines, predict whether each of the following compounds is soluble or
insoluble in water:
a.
NiBr2 –
f.
Ca(C2H3O2)2 –
b.
Cs2S –
g.
PbCl2 –
c.
H3PO4 –
h.
Cu(OH)2 –
d.
(NH4) 2SO4 –
i.
K2CO3 –
e.
SrCO3 –
j.
AgNO3 –
2. Fill in the table below to classify the given compounds.
Ionic, covalent,
acid, or base
a.
NiBr2
b.
Cs2S
c.
H3PO4
d.
(NH4) 2SO4
e.
SrCO3
f.
Ca(C2H3O2)2
g.
PbCl2
h.
Cu(OH)2
i.
K2CO3
j.
AgNO3
strong, weak, or
nonelectrolyte
Precipitate Reactions (aka: Double Replacement Reactions) WS
Precipitate –
Directions: Predict the products formed by the combination of the following solutions. If a precipitate
forms, write a balanced chemical equation for the reaction. If all products are aqueous write “NR”
(no reaction).
a.
____Li2CO3 (aq) + ____AgNO3 (aq) 
b.
____NaOH (aq) + ____K2SO4 (aq) 
c.
____BaCl2 (aq) + ____H3PO4 (aq) 
d.
____FeSO4 (aq) + ____Pb(NO3)2 (aq) 
e.
____Mg(C2H3O2)2 (aq) + ____(NH4)2S (aq) 
f.
Potassium sulfide and zinc chloride react.
g.
Cesium phosphate and cadmium (II) acetate react.
h.
Ammonium sulfate and lithium hydroxide react.
Net Ionic Equations WS
Spectator Ion -
Directions: Predict the products formed by the combination of the following solutions. Write the
balanced complete ionic equations and net ionic equations for the precipitation reactions that
occur when each of the following solutions are mixed. If no reaction occurs write “No Rxn”.
1. ____(NH4) 3PO4 (aq) + ____CaCl2 (aq)
2. ____Cr(OH)3 (s) + ____HNO3 (aq)
3. ____Pb(NO3) 2 (aq) + ____Li2S (aq)
4. Separate samples of a solution of an unknown ionic compound are treated with dilute AgNO3,
Pb(NO3) 2, and BaCl2. Precipitates form in all three cases. Which of the following anions could
be the anion of the unknown salt: Br –, C2H3O2–, or CO32– ?
5. Separate samples of a solution of an unknown salt are treated with dilute solutions of HBr,
H2SO4, and NaOH. A precipitate forms only with H2SO4. Which of the following cations could
the solution contain: Pb2+, Ba2+, or K+ ?