Molecular/Ionic/Net Ionic Equations
Name___________________ Hr___
Example: When a solution of zinc nitrate reacts with a solution of sodium sulfide, a white
precipitate forms.
1. Identify the ions in each reactant:
zinc nitrate:
cation is zinc (______)
anion is nitrate (_______)
sodium sulfide:
cation is sodium (______) anion is sulfide (_______)
2. Write the word equation for the reaction:
zinc nitrate + sodium sulfide  __________________ + ________________
3. Write the balanced MOLECULAR equation:
Zn(NO3)2(aq) + __________
(aq)
 __________
(s)
+ ____________ (aq)
4. Write the IONIC equation:
Zn2+(aq) + 2NO31-(aq) + _____ (aq) + _____
(aq)
 ______
(s)
+ ______
(aq)
+ ______ (aq)
5. Write the NET IONIC equation:
__________________________
SOLUBILITY RULES
Reactants
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Products
Problem: When a solution of cobalt(III) sulfate reacts with a solution of sodium hydroxide, a
blue precipitate forms.
1) cobalt(III) sulfate
sodium hydroxide
cation__________
anion___________
cation__________
anion___________
2) Word Equation
__________________________________________________________________
3) Molecular Equation
__________________________________________________________________
4) Ionic Equation
__________________________________________________________________
5) Net Ionic Equation
Problem: When aqueous silver nitrate reacts with aqueous potassium phosphate, a yellow
precipitate forms.
1) silver nitrate
potassium phosphate
cation__________
anion___________
cation__________
anion___________
2) Word Equation
__________________________________________________________________
3) Molecular Equation
__________________________________________________________________
4) Ionic Equation
__________________________________________________________________
5) Net Ionic Equation