Hydroxide Precipitates: Ionic Equations
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15 Terms
What is the ionic equation for aluminium hydroxide formation?
Al³⁺ + 3OH⁻ → Al(OH)₃.
What is the ionic equation for calcium hydroxide formation?
Ca²⁺ + 2OH⁻ → Ca(OH)₂.
What is the ionic equation for magnesium hydroxide formation?
Mg²⁺ + 2OH⁻ → Mg(OH)₂.
What is the ionic equation for copper(II) hydroxide formation?
Cu²⁺ + 2OH⁻ → Cu(OH)₂.
What is the ionic equation for iron(II) hydroxide formation?
Fe²⁺ + 2OH⁻ → Fe(OH)₂.
What is the ionic equation for iron(III) hydroxide formation?
Fe³⁺ + 3OH⁻ → Fe(OH)₃.
Why are hydroxide precipitate equations useful?
They show how metal ions combine with hydroxide ions to form insoluble compounds.
What charge does the hydroxide ion have?
–1.
What charge does the aluminium ion have?
+3.
What charge does the calcium ion have?
+2.
What charge does the magnesium ion have?
+2.
What charge does the copper(II) ion have?
+2.
What charge does the iron(II) ion have?
+2.
What charge does the iron(III) ion have?
+3.
Why are different numbers of hydroxide ions needed for different metal ions?
The total charges must balance to form an electrically neutral compound.