Balancing Oxidation–Reduction Equations
ENERGY
General Chemistry 2 (Chem 112)
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1
Section 10.10
Balancing Oxidation–Reduction Equations
UNIT 1: ENERGY
MODULE 1: ELECTROCHEMICAL
ENERGY
MODULE 2: NUCLEAR ENERGY
MODULE 3: FUELS
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2
Section 10.9
Oxidation–Reduction Reactions
Redox Reactions
•
Reactions in which one or more electrons are transferred.
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3
Section 10.9
Oxidation–Reduction Reactions
Reaction of Sodium and Chlorine
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4
Section 10.9
Oxidation–Reduction Reactions
Reaction of Magnesium and Oxygen
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Section 10.9
Oxidation–Reduction Reactions
Reaction of Magnesium and Oxygen
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Section 10.9
Oxidation–Reduction Reactions
MNEMONIC:
LEORA – Loss of Electrons, Oxidation,
Reducing Agent
GEROA – Gain of Electrons, Reduction,
Oxidizing Agent
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Section 10.9
Oxidation–Reduction Reactions
Reaction of Magnesium and Oxygen
LEORA
GEROA
Mg – reducing agent
O2 – oxidizing agent
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8
Section 10.9
Oxidation–Reduction Reactions
Reaction of Zinc and Copper (II) Sulfate
Zn – reducing agent
CuSO4 – oxidizing agent
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9
Section 10.9
Oxidation–Reduction Reactions
Oxidation number or Oxidation State
• signifies the number of charges the atom would have in a molecule or ionic compound if electrons were transferred completely.
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