Reaction of metals with water

• Potassium


  • Floats, fizzes and moves.
  • the surface, heat released, eventually disappearsing
  • Colourless solution is formed, lilac flame, crackle or explosion at the end
• Equation-2k+2H₂O-> 2 KOH+ H₂
• Sodium


  • floods, fizzes, moves about the surface, melos to form a silvery ball, eventually disappears, colourless solution formed
• Equation-2Na+ 2H₂0->2NaOH+H₂
• In the presence of air, magnesium burns to form magnesium oxide (MgO).
• Magnesium reacts vigorously with dilute acids, producing hydrogen gas and an insoluble salt.