redox reaction
Electron transfer process
A redox reaction is a chemical reaction involving the transfer of electrons between substances—one loses electrons (oxidation) while another gains them (reduction).
The two processes always occur together, hence the portmanteau of reduction-oxidation.
Rusting, combustion, and cellular respiration are all redox reactions.
Batteries generate electricity through redox reactions.
Conductive interface point
- anodeOxidation electrode
- cathodeElectrode current exits through
- electrolyteConductive dissolved substance
- electrolysisCurrent-induced ionic separation
half-reaction · electroplating · battery · fuel cell · voltage · current · electron flow · Faraday
Electron-accepting chemical species
- half-reactionElectron gain or loss alone
- electron acceptorSpecies gaining electrons
- balancing equationsEqualizing reactants and products
- stoichiometryQuantitative chemical reaction analysis
Iron oxide coating
- tarnishOxidation discoloration on metal
- pittingForming small cavities
- galvanic corrosionElectrochemical damage between unlike metals
- weatheringAtmospheric breakdown of materials
sacrificial anode · protective coating · patina · electron flow
Reaction-speeding proteins
- glycolysisGlucose metabolism producing ATP
- ATPCell's energy molecule
- mitochondriaCell's energy-producing organelles
- catabolismMetabolic molecular dismantling
aerobic respiration · anaerobic respiration · NADH · FAD · coenzymes · bioenergetics · cellular energy · oxygen consumption
electrode
Conductive interface point
- anodeOxidation electrode
- cathodeElectrode current exits through
- electrolyteConductive dissolved substance
electrolysis · half-reaction · electroplating · battery · fuel cell · voltage · current · electron flow · Faraday
oxidizing agent
Electron-accepting chemical species
- half-reactionElectron gain or loss alone
- electron acceptorSpecies gaining electrons
- balancing equationsEqualizing reactants and products
rust
Iron oxide coating
- tarnishOxidation discoloration on metal
- pittingForming small cavities
- galvanic corrosionElectrochemical damage between unlike metals
weathering · sacrificial anode · protective coating · patina · electron flow
enzymes
Reaction-speeding proteins
- glycolysisGlucose metabolism producing ATP
- ATPCell's energy molecule
- mitochondriaCell's energy-producing organelles
catabolism · aerobic respiration · anaerobic respiration · NADH · FAD · coenzymes · bioenergetics · cellular energy · oxygen consumption
flame
Burning gas made visible
fuel · oxidizer · exothermic · heat · energy · pyrolysis · incineration · smoke · ash · thermal