Formula, Ionic and Net Ionic Equations Worksheet

Formula, Ionic and Net Ionic Equations Worksheet (identifying precipitate in double replacement rxns)

Write the reactions as directed. Be sure to include charges on ions. Include (s) beside a precipitate and underline any molecular products.

1. 
   Mix aqueous potassium chromate with aqueous barium nitrate.
   

Formula equation – K₂CrO_{4 (aq)} +Ba(NO₃)_{2 (aq)} → 2KNO_{3 (aq)}+ BaCrO_{4 (s)}

Ionic equation – 2K⁺ + CrO₄^-2 + Ba⁺ + 2NO₃^- → 2K⁺ + 2NO₃^- +BaCrO_4(s)

Net Ionic equation – CrO₄^-2 + Ba⁺ → BaCrO_4(s)

2. 
   Aqueous potassium chloride is added to aqueous silver nitrate.
   

Formula equation – KCl_(aq) + AgNO_{3 (aq)} → KNO_3(aq) + AgCl_(s)

Ionic equation – K⁺ + Cl^- + Ag⁺ + NO₃^- → K⁺ + NO₃^- +AgCl_(s)

Net Ionic equation – Cl^- + Ag⁺ → AgCl_(s)

3. 
   Aqueous potassium hydroxide is mixed with aqueous iron (III) nitrate.
   

Formula equation – 3KOH_(aq) + Fe(NO₃)₃ → 3KNO₃ + Fe(OH)_{3 (s)}

Ionic equation – 3K⁺ + 3OH^- + Fe⁺³ + 3NO₃^- → 3K⁺ + 3NO₃^- + Fe(OH)_3(s)

Net Ionic equation – 3OH^- + Fe⁺³ → Fe(OH)_3(s)

4. 
   Aqueous solutions of lithium sulfide and nickel (II) nitrate are mixed.
   

Formula equation – Li₂S_(aq) + Ni(NO₃)_2(aq) → 2LiNO_3(aq) + NiS_(s)

Ionic equation – 2Li⁺ + S^-2 + Ni⁺² + 2NO₃^- → 2Li⁺ + 2NO₃ +NiS_(s)

Net Ionic equation – Ni⁺² + S^-2 → NiS_(s)

5. 
   Barium chloride and sodium sulfate solutions are mixed.
   

Formula equation – BaCl_{2 (aq)} + Na₂SO_4(aq) → BaSO_4(s) + 2NaCl_(aq)

Ionic equation – Ba⁺² + 2Cl^- + 2Na⁺ + SO₄^-2 → BaSO_4(s) + 2Na⁺ + 2Cl^-

Net Ionic equation – Ba⁺² + SO₄^-2 → BaSO_4(s)

Write the balanced formula equation and net ionic equation for the following reactions.

6. 
   Pb(NO₃)_{2 (aq)} + KCl _(aq)
   

Formula equation – Pb(NO₃)_{2 (aq)} + 2KCl _(aq) → PbCl_2(s) + 2KNO_3(aq)

Net Ionic equation – Pb⁺² + 2Cl^- → PbCl_2(s)

7. 
   Al(NO₃)_{3 (aq)} + Ba(OH)_{2 (aq)}
   

Formula equation – 2Al(NO₃)_3(aq) + 3Ba(OH)_2(aq) → 2Al(OH)_3(s) + 3Ba(NO₃)_2(aq)

Ionic equation – 2Al⁺³ + 3OH^- → 2Al(OH)_3(s)

Write the net ionic equation for the reaction, if any, that occurs when aqueous solutions of the following are mixed.

8. 
   Ammonium sulfate and barium nitrate
   

Ba⁺² + SO₄^{- 2} → BaSO_4(s)

9. 
   Lead (II) nitrate and sodium chloride
   

Pb⁺² + 2Cl^- → PbCl_2(s)

10. 
    Sodium bromide and rubidium chloride
    

NaBr + RbCl → NaCL + RbBR No reaction

11. 
    Copper (II) chloride and sodium hydroxide
    

Cu⁺² + 2OH^- → Cu(OH)_2(s)

12. 
    Sodium phosphate and potassium nitrate
    

Na₃PO₄ + 3KNO₃ → 3NaNO₃ + K₃PO₄ No reaction