CH-76
Neutralisation
Chemistry · Secondary 3 · Medium · Neutralisation
Aqueous sodium hydroxide is added to aqueous copper(II) sulfate until no further change is seen. What is the ionic equation for the formation of the precipitate?
- Cu²⁺(aq) + SO₄²⁻(aq) → CuSO₄(s)
- Cu²⁺(aq) + 2OH⁻(aq) → Cu(OH)₂(s)
- Na⁺(aq) + OH⁻(aq) → NaOH(s)
- Cu(OH)₂(aq) → Cu²⁺(aq) + 2OH⁻(aq)
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