Review Note
Last Update: 08/22/2024 06:07 AM
Current Deck: Chem Unit 3 T1 Chemical Equilirbium Systems::U3 T2 Redox Reactions
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Commit #132593
What are half equations
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Commit #132593
Half equation split a balanced overall equation in half one of reduction whilst the other oxidation.
i.e. combustion of magnesium: 2Mg(s) + O2(g) ----> 2MgO(s)
i.e. combustion of magnesium: 2Mg(s) + O2(g) ----> 2MgO(s)
Balanced Overall Equation:
2Mg(s) + O2(g) ----> 2Mg2+ + 2O2-
Half reactions:
Oxidation: 2Mg(s) ----> 2Mg2+ + 4e-
Reduction: O2(g) + 4e- ----> 2O2-