Tendency To Form Positive Ions

• Displacement reaction


  • a more reactive metals displaces a less reactive metal from its salt solution
  • Redox reaction where the more reactive metal is oxidised and the less reactive metal is reduced
• Thermal Decomposition of Metal carbonates

  • reactive metals from stable metal carbonates which do not decompose upon heating
  • most metal carbonate are thermally unstable and decompose to from metal oxides and carbon dioxide
  • potassium carbonate and sodium carbonate do not decompose upon heating
  • calcium to copper : decompose upon heating to form metal oxides and carbon dioxide
  • silver carbonate decomposes to from a metal, oxygen and carbon dioxide