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The question describes the reaction of copper(II) ions (Cu²+) with sodium hydroxide (NaOH). This is a common precipitation reaction used to test for the presence of copper(II) ion

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The question describes the reaction of copper(II) ions (Cu2+\text{Cu}^{2+}) with sodium hydroxide (NaOH\text{NaOH}). This is a common precipitation reaction used to test for the presence of copper(II) ions.

  1. Identify the reactants and their dissociation.

    The reactants are Cu2+(aq)\text{Cu}^{2+}(\text{aq}) and NaOH(aq)\text{NaOH}(\text{aq}).
    Sodium hydroxide is a strong base and dissociates into Na+(aq)\text{Na}^+(\text{aq}) and OH−(aq)\text{OH}^-(\text{aq}) ions in water.

  2. Determine the products of the reaction.

    Copper(II) ions (Cu2+\text{Cu}^{2+}) react with hydroxide ions (OH−\text{OH}^-) to form copper(II)

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