The equation CaSO4 + 2NaOH -> Na2SO4 + Ca(OH)2

  1. Detailed Information about the Equation:

    • The chemical equation above represents the ion exchange reaction between Calcium sulfate (CaSO4) and Sodium hydroxide (NaOH) to produce Sodium sulfate (Na2SO4) and Calcium hydroxide (Ca(OH)2).
    • Calcium sulfate and Sodium hydroxide are the reactants, Sodium sulfate and Calcium hydroxide are the products of the reaction.

  2. Reaction Conditions:

    • This reaction generally occurs in a water solution environment, at room temperature or higher.
    • The concentration of the reactants also affects the reaction rate.

  3. Reaction Process:

    • In the initial stage, Calcium sulfate (CaSO4) and Sodium hydroxide (NaOH) react with each other to form Sodium sulfate (Na2SO4) and Calcium hydroxide (Ca(OH)2).
    • The reaction process continues until one of the reactants is exhausted or a chemical equilibrium is reached.

  4. Occurring Phenomena:

    • When the reaction takes place, the solution will transition from the white color of Calcium sulfate and Sodium hydroxide to the transparent color of Sodium sulfate and Calcium hydroxide.
    • If the reaction occurs in a solution, the precipitation of Calcium hydroxide (Ca(OH)2) can be observed.

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