The ionic equations of the given reactions are as follows:
- Ionic equation: Na⁺ OH⁻ + Fe³⁺ 3NO₃⁻ → Fe(OH)₃(s) + 3Na⁺ 3NO₃⁻
- Ionic equation: 2Ag⁺ 2NO₃⁻ + Mg → Mg²⁺ 2NO⁻ + 2 Ag (s)
- Ionic equation: 2H⁺ SO₄²⁻ + 2K⁺ 2OH⁻ → 2K⁺ SO₄²⁻ + 2H₂O (l)
What are ionic equations?
Ionic equations are equations which shows the ions involved in a given redox reaction as they react to form products.
The ionic equations of the given reactions are as follows:
a) precipitation of iron(III) hydroxide when solutions of sodium hydroxide and iron(III) nitrate are mixed
Molecular equation: NaOH + Fe(NO₃)₃ → Fe(OH)₃(s) + NaNO₃
Ionic equation: Na⁺ OH⁻ + Fe³⁺ 3NO₃⁻ → Fe(OH)₃(s) + 3Na⁺ 3NO₃⁻
b) redox reaction between solution of silver(1) nitrate and magnesium metal
Molecular equation: 2 AgNO₃ + Mg → Mg(NO₃)₂ + 2 Ag (s)
Ionic equation: 2Ag⁺ 2NO₃⁻ + Mg → Mg²⁺ 2NO⁻ + 2 Ag (s)
c) acid-base reaction between sulfuric acid and potassium hydroxide
Molecular equation: H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O
Ionic equation: 2H⁺ SO₄²⁻ + 2K⁺ 2OH⁻ → 2K⁺ SO₄²⁻ + 2H₂O (l)
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