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Electrolysis

Electrolysis. Water Molecules. Zumdahl, Zumdahl, DeCoste, World of Chemistry 2002, page 8. Diatomic Diatomic oxygen molecule hydrogen molecules. +. The decomposition of two water molecules. Water molecules. Electric current.

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Electrolysis

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  1. Electrolysis

  2. Water Molecules Zumdahl, Zumdahl, DeCoste, World of Chemistry2002, page 8

  3. Diatomic Diatomic oxygen molecule hydrogen molecules + The decomposition of two water molecules. Water molecules Electric current 2 H2O  O2 + 2 H2

  4. Water Oxygen gas forms Hydrogen gas forms Source of direct current Electrode Electrolysis “electro” = electricity “lysis” = to split *H1+ H2O(l) O2 (g) + 2 H2 (g) water oxygen hydrogen *Must add acid catalyst to conduct electricity Zumdahl, Zumdahl, DeCoste, World of Chemistry2002, page 32

  5. Electrolysis of Water Half reaction at the cathode (reduction): 4 H2O + 4 e - 2 H2 + 4 OH 1- Half reaction at the anode (oxidation): 2 H2O  O2 + 4 H 1+ + 4 e -

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