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reduction
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Reduction
In chemistry, the gain of electrons, loss of oxygen, or gain of hydrogen by an atom, ion, or molecule during a chemical reaction.
Reduction may be brought about by reaction with another compound, which is simultaneously oxidized (reducing agent), or electrically at the cathode (negative electrode) of an electric cell. Examples include the reduction of iron(III) oxide to iron by carbon monoxide:
the hydrogenation of ethene to ethane:
and the reduction of a sodium ion to sodium:
© RM 2009. Helicon Publishing is division of RM.
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acid rain
activation energy
aluminium
ammonia
bauxite
biotechnology
blast furnace
brewing
catalyst
chemical equation
chemical equilibrium
collision theory
combustion
competition reaction
conservation of mass
contact process
decomposition
denaturation
displacement reaction
ductile
electric charge
electrolysis (chemistry)
electrolyte
endothermic reaction
energy of reaction
energy transfer
enzyme
equation (chemistry)
equation, word
exothermic reaction
fossil fuel
Haber process
haematite
iron ore
kinetic theory
malleability
metal
metallurgy
mineral extraction
neutralization
nitric acid
ore
oxidation (chemistry)
particle theory
photosynthesis
rate of reaction
reaction
reactivity series
redox reaction
reduction
respiration
reversible reaction
rust (chemistry)
sacrificial metal
slag
smelting
smoke
sonorous
steel
sulphuric acid
yield (chemistry)
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