cells and batteries

• describe chemical cell

  use chemical reactions to produce electricity
• describe structure of chemical cell

  two metal electrodes connected by wire in contact with electrolyte
• describe battery

  two or more cells connected in series to produce higher voltage
• give factors affecting voltage produced by chemical cell / battery

  type of electrode and electrolyte
• describe non rechargeable cell / battery

  chemical reaction stop when reactants used up
• give example of non rechargeable cell / battery

  alkaline batteries
• describe rechargeable cell / battery

  chemical reaction reverse with supplied external current