Electro chemistry

Section 10.10

Balancing Oxidation–Reduction Equations

ENERGY
General Chemistry 2 (Chem 112)

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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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Section 10.9

Oxidation–Reduction Reactions
Redox Reactions

•

Reactions in which one or more electrons are transferred.

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Section 10.9

Oxidation–Reduction Reactions
Reaction of Sodium and Chlorine

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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
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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Section 10.9

Oxidation–Reduction Reactions
Reaction of Zinc and Copper (II) Sulfate

Zn – reducing agent
CuSO4 – oxidizing agent
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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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