Electrochemistry

• What Happens Atomically When Batteries Are Connected in Series?
  In a series connection, each battery’s chemical reactions contribute energy per unit charge, so aligned emfs add to give a larger total voltage.
• What Are the Best Settings for Electrolysis of Water?
  For a small water-electrolysis demonstration, use a current-limited DC supply, a chloride-free electrolyte, suitable electrodes, and strict gas-safety precautions.
• How to Identify the Anode and Cathode in a Concentration Cell
  Identify concentration-cell electrodes by comparing reduction potentials: in a standard metal–ion cell, the dilute side is the anode and the concentrated side is the.