NiO (s) + H₂SO₄ (aq) → NiSO₄ (aq) + H₂O (l)

Reactants:

• NiO – Nickel(II) oxide
  • Other names: Nickel monoxide , Oxonickel , Nickel(ii)oxide , Nickelous oxide
  • Appearance: Green crystalline solid ; Green-to-black crystalline powder
• H₂SO₄ – Sulfuric acid
  • Other names: Oil of vitriol , Sulfuric acid, concentrated (> 51% and < 100%) , H2SO4 ... show moreSulphuric acid , Battery acid , Hydrogen sulfate , [SO2(OH)2] , [S(OH)2O2] , Sulfuric acid (aqueous) show less
  • Appearance: Clear, colorless liquid ; Odourless colourless oily hygroscopic liquid ; Colorless to dark-brown, oily, odorless liquid. [Note: Pure compound is a solid below 51°F. Often used in an aqueous solution.]

Products:

• NiSO₄ – Nickel(II) sulfate
  • Other names: Nickelous sulfate , Nickel(ii)sulphate , NiSO4 ... show moreNickel sulphate , Nickel(II) sulfate (1:1) , Nickel sulfate(1:1) , Nickel sulfate , Nickel(II) sulphate , Nickelous sulphate , Nickel(2+) sulfate show less
  • Appearance: Yellow solid (anhydrous) | blue crystals (hexahydrate) | green-blue crystals (heptahydrate) ; Yellow-to-green crystals
• H₂O – Water, oxidane
  • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show moreDihydrogen monoxide (DHMO) (systematic name) , Hydrogen monoxide , Dihydrogen oxide , Hydric acid , Hydrohydroxic acid , Hydroxic acid , Hydrol , Μ-oxido dihydrogen , Κ1-hydroxyl hydrogen(0) show less
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas