3 NaNO3 + 8 Al + 5 NaOH + 2 H2O → 8 NaAlO2 + 3 NH3 – Balanced equation

Or you want a quick look:

This is an oxidation-reduction (redox) reaction:

8 Al - 24 e- 8 AlIII (oxidation)

3 NV + 24 e- 3 N-III (reduction)

Al is a reducing agent, NaNO3 is an oxidizing agent.

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Reactants:

  • NaNO3Sodium nitrate
    • Other names: Peru saltpeter , Soda niter , Cubic niter
    • Appearance: White powder or colorless crystals ; Colourless hygroscopic crystals
  • Al
    • Names: Aluminum , Aluminium powder , Al
    • Appearance: Silvery-white-to-grey powder ; Silvery-white, malleable, ductile, odorless metal.
  • 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).
  • 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

Products:

  • NaAlO2
    • Names: Sodium aluminate , Sodium aluminium oxide , Sodium metaaluminate
    • Appearance: White powder (sometimes light-yellowish) | hygroscopic/ when dissolved in water a colloidal black solution is formed ; White hygroscopic powder
  • 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.]
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