3 Ba(OH)2 + 2 H3PO4 → Ba3(PO4)2 + 6 H2O – Balanced equation

Or you want a quick look:

This is an acid-base reaction (neutralization): Ba(OH)2 is a base, H3PO4 is an acid.

Reactants:

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  • Ba(OH)2
    • Names: Barium hydroxide , Caustic baryta , Barium hydroxide lime , Ba(OH)2
    • Appearance: White solid
  • H3PO4
    • Names: Phosphoric acid , Orthophosphoric acid , Phosphoric(V) acid
    • Appearance: Hygroscopic colourless crystals ; Thick, colorless, odorless, crystalline solid. [Note: Often used in an aqueous solution.]

Products:

  • Ba3(PO4)2
    • 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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