Oxidation State Calculator

Find Oxidation Numbers

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Oxidation State Finder

Calculate oxidation states for elements in compounds

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Redox Reaction Analyzer

Analyze oxidation state changes in reactions

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Electron Transfer Calculator

Calculate number of electrons transferred

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Understanding Oxidation States

Basic Concepts

Key principles:

  • Oxidation number
  • Electron transfer
  • Redox reactions
  • Charge balance

Oxidation Rules

Common rules:

  • Free elements = 0
  • Group 1 metals = +1
  • Group 2 metals = +2
  • Fluorine = -1

Redox Processes

Key concepts:

  • Oxidation
  • Reduction
  • Half-reactions
  • Electron flow

Applications

Common uses:

  • Battery chemistry
  • Corrosion
  • Electroplating
  • Fuel cells

Advanced Topics

Special cases:

  • Mixed oxidation states
  • Peroxides
  • Superoxides
  • Complex ions

Essential Oxidation State Rules

Sum Rule

Σ(oxidation states × atoms) = charge

Electron Transfer

ΔOx.State × moles = electrons

Compound Rule

Neutral compound: sum = 0