Oxidation-Reduction Reaction
A reaction involving the transfer of electrons between chemical species.
Also: redox reaction · redox
Definition
An oxidation-reduction (redox) reaction is a chemical reaction in which electrons are transferred between two species: oxidation involves the loss of electrons and reduction involves the gain of electrons. These paired processes always occur together. Redox reactions are central to processes such as combustion, corrosion, photosynthesis, cellular respiration, and electrochemical cells.
Example
“In a flashlight battery, zinc metal at the anode is oxidized by losing electrons, while manganese dioxide at the cathode is reduced by gaining those electrons, driving current through the circuit to light the bulb.”
Usage Examples
- 1
“The team applied oxidation-reduction reaction best practices to improve their chemistry outcomes significantly.”
- 2
“Understanding oxidation-reduction reaction is essential for anyone building a career in STEM.”
When & How to Use
Use 'Oxidation-Reduction Reaction' when working in Chemistry contexts where an oxidation-reduction (redox) reaction is a chemical reaction in which electrons are transferred between two species: oxidation involves the loss of electrons and reduction involves the gain of electrons.
- ▸Applying oxidation-reduction reaction principles during a chemistry project or initiative
- ▸Explaining oxidation-reduction reaction to a junior team member or stakeholder unfamiliar with STEM
- ▸Evaluating options or proposals using oxidation-reduction reaction as a decision-making criterion
Etymology & Origin
The term 'Oxidation-Reduction Reaction' derives from professional usage and entered STEM professional usage as the field formalised in the 20th century.
History & Evolution
The concept of oxidation-reduction reaction has evolved alongside STEM. Early practitioners relied on informal methods; structured approaches emerged with the professionalisation of chemistry in the mid-20th century. Today, oxidation-reduction reaction is a standard part of STEM practice globally.
Synonyms
- redox reaction
- electron transfer reaction
- oxidation-reduction
Images
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Related Terms
- Electrochemistry
- Oxidation State
- Half-Reaction
- Corrosion