Redox Reactions

• Atoms of metals near the bottom of the electrochemical series lose electrons easily, so they don't form ions easily
• Electrochemical displacement takes place

  The metal being placed in the solution is lower in the electrochemical series than the metal which is in solution
• In an equation presenting an oxidation reaction, the electrons will be displayed on the right hand side of the arrow</b>
• Reduction


  A chemical reaction where a species loses electrons
• Redox reactions

  • K²(aq) te →→→→K (5)
  • Al(s) Al³(aq) + 35²-
  • 2 Alco) + 6 Ht (ag) —> 2 AL ³+ (aq) 3 Hz (g)
• Metals

  • Atoms of metals near the bottom of the electrochemical series
  • Atoms of metals near the top of the electrochemical series
• A metal is placed in a solution containing ions of a different metal

  Electrochemical displacement takes place if the metal being added is higher in the electrochemical series than the metal which is in solution
• Metals that take part in chemical reactions

  • Silver
• Redox

  A chemical reaction where both oxidation and reduction reactions occur together
• Atoms of metals near the top of the electrochemical series lose electrons easily
• No reaction will take place if the metal being placed in the solution is higher in the electrochemical series than the metal which is in solution
• In a reduction reaction, the electrons will be displayed on the left hand side of the arrow</b>
• Oxidation


  A chemical reaction where a species gains electrons