2 NaOH + (NH4)2SO4 → 2 NH3 + Na2SO4 + 2 H2O – Balanced equation

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This is an acid-base reaction (neutralization): NaOH is a base, (NH4)2SO4 is an acid.

Reactants:

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  • NaOH
    • Names: Sodium hydroxide , Caustic soda , Lye
    • Appearance: White, waxy, opaque crystals ; White hygroscopic solid in various forms ; Colorless to white, odorless solid (flakes, beads, granular form).
  • (NH4)2SO4Ammonium tetraoxosulfate (VI)
    • Other names: Ammonium sulphate , Ammonium sulfate , Ammonium sulfate (2:1)
    • Appearance: Fine white hygroscopic granules or crystals.

Products:

  • NH3
    • Names: Ammonia , Azane (only intended for use in naming derivatives of ammonia) , Hydrogen nitride
    • Appearance: Colourless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a pungent, suffocating odor. [Note: Shipped as a liquefied compressed gas. Easily liquefied under pressure.]
  • Na2SO4
    • Names: Sodium sulfate , Sodium sulphate , Sulfate of sodium
    • Appearance: White crystalline solid | hygroscopic ; White hygroscopic solid in various forms
  • H2OWater, oxidane
    • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide
    • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
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