1. Half cells

• What is a half cell ?

  One half of an electrochemical cell
• How can a half cell be constructed ?

  Metal dipped in its ions, or a platinum electrode with 2 aqueous ions
• What happens if we have a half cell with 2 metal aqueous ions where there is no solid version ?

  We use use a platinum electrode as it is inert but electrically conductive allowing ions to flow through
• How is an electrochemical cell created ?

  By joining 2 different half cells together