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Question
Write one equation for the decomposition reaction where energy is supplied in the form of electricity.
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Solution
- \[\ce{\underset{(Molten)}{\underset{Aluminium oxide}{2Al2O3_{(l)}}} ->[Electricity][Decomposition] \underset{Aluminium metal}{4Al_{(l)}} + \underset{Oxygen}{3O2_{(g)}}}\]
- \[\ce{\underset{Water}{2H2O_{(l)}} ->[electricity][(Decomposition)] \underset{Hydrogen}{2H2_{(g)}} + \underset{Oxygen}{O2_{(g)}}}\]
- \[\ce{\underset{(Molten)}{\underset{Sodium chloride}{2NaCl_{(l)}}} ->[Electricity][(Decomposition)] \underset{Sodium metal}{2Na_{(s)}} + \underset{Chlorine gas}{Cl2_{(g)}}}\]
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