2 HNO3 + Fe(OH)2 → Fe(NO3)2 + 2 H2O – Balanced equation

Or you want a quick look:

This is an acid-base reaction (neutralization): HNO3 is an acid, Fe(OH)2 is a base.


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  • HNO3Nitric acid
    • Other names: Aqua fortis , Spirit of niter , Eau forte
    • Appearance: Colorless, yellow or red fuming liquid ; Colourless-to-yellow liquid with pungent odour ; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]
  • Fe(OH)2Iron(II) hydroxide
    • Other names: Ferrous hydroxide
    • Appearance: Green solid


  • Fe(NO3)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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