Net Ionic Equations

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Potassium phosphate is added to calcium chloride.

Ca²⁺ (aq) + PO₄³⁻ (aq) → Ca₃(PO₄)₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of nickel (II) chloride is added to a solution of sodium hydroxide, forming a precipitate.

Ni²⁺ (aq) + 2 OH⁻ (aq) → Ni(OH)₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Strontium chloride solution is mixed with a sample of sodium carbonate solution, resulting in the formation of a precipitate.

Sr²⁺ (aq) + CO₃²⁻ (aq) → SrCO₃ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A barium nitrate solution and a potassium fluoride solution are combined and a precipitate forms.

Ba²⁺ (aq) + 2 F⁻ (aq) → BaF₂ (s)

Barium fluoride is slightly soluble.

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of sodium hydroxide is added to a solution of lead (II) nitrate.

Pb²⁺ (aq) + 2 OH⁻ (aq) → Pb(OH)₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of nickel (II) bromide is added to a solution of potassium hydroxide.

Ni²⁺ (aq) + 2 OH⁻ (aq) → Ni(OH)₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Lead (II) nitrate and magnesium iodide are combined.

Pb²⁺ (aq) + 2 I⁻ (aq) → PbI₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of potassium carbonate is added to a solution of strontium chloride.

Sr²⁺ (aq) + CO₃²⁻ (aq) → SrCO₃ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of potassium dichromate is added to a solution of iron (II) nitrate.

Fe²⁺ (aq) + Cr₂O₇²⁻ (aq) → FeCr₂O₇ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of sodium phosphate is added to a solution of aluminum nitrate.

Al³⁺ (aq) + PO₄³⁻ (aq) → AlPO₄ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Solutions of silver nitrate and sodium chloride are mixed.

Ag⁺ (aq) + Cl⁻ (aq) → AgCl (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Excess saturated sodium fluoride is added to a solution of aluminum sulfate.

No Reaction

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of lead (II) nitrate is added to a solution of potassium sulfate.

Pb²⁺ (aq) + SO₄²⁻ (aq) → PbSO₄ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A potassium phosphate solution is added to a solution of calcium acetate.

3 Ca²⁺ (aq) + 2 PO₄³⁻ (aq) → Ca₃(PO₄)₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Excess potassium hydroxide is added to a solution of nickel (II) chloride.

Ni²⁺ (aq) + 2 OH⁻ (aq) → Ni(OH)₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of sodium iodide is added to a solution of lead (II) acetate.

Pb²⁺ (aq) + 2 I⁻ (aq) → PbI₂ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Solutions of sodium chromate and lead (II) nitrate are mixed.

Pb²⁺ (aq) + CrO₄²⁻ (aq) → PbCrO₄ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

Solutions of strontium nitrate and sodium sulfate are mixed

Sr²⁺ (aq) + SO₄²⁻ (aq) → SrSO₄ (s)

Write a net ionic equation for the following situation. If a reaction does not occur,

write "no rxn."

A solution of copper (II) chloride is added to a solution of sodium sulfide.

Cu²⁺ (aq) + S²⁻ (aq) → CuS (s)

Complete (Total) Ionic Equation

Equation for a chemical reaction written to show the predominant form of all species in aqueous solution or in contact with water.

(aq)

Aqueous - the substance is dissolved in water.

Spectator Ion

An ion that exists in the same form on both the reactant and product sides of a chemical reaction.

Net Ionic Equation

The equation for a reaction in solution that shows only those particles that are directly involved in the chemical change *eliminates spectator ions*

Precipitate

A solid that forms and settles out of a liquid mixture.

Soluble

Able to be dissolved

Insoluble

An insoluble substance is a substance (solid) that will not dissolve in a solvent even after mixing (eg; sand and water).