Difference between revisions of "Reduction"
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: '''Reduction''' takes place in [[Displacement Reaction|displacement reactions]]. | : '''Reduction''' takes place in [[Displacement Reaction|displacement reactions]]. | ||
In the following '''redox reaction''': | In the following '''redox reaction''': | ||
| − | : [[Magnesium]] + [[Copper II Chloride]] → [[Magnesium Chloride]] + [[Copper]] | + | : [[Magnesium]] + [[Copper (II) Chloride]] → [[Magnesium Chloride]] + [[Copper]] |
: [[Reduction]] of [[Copper]]: <chem>Cu^2+ + 2e^- -> Cu</chem> | : [[Reduction]] of [[Copper]]: <chem>Cu^2+ + 2e^- -> Cu</chem> | ||
The [[Copper]] is [[Reduction|reduced]] because it gains [[electron]]s. | The [[Copper]] is [[Reduction|reduced]] because it gains [[electron]]s. | ||
Revision as of 17:55, 6 April 2019
Contents
Key Stage 4 Foundation
Meaning
Reduction is when a metal oxide loses one or more Oxygen atoms.
About Reduction
- Reduction takes place in displacement reactions involving metal oxides.
In the following redox reaction:
- Aluminium + Iron Oxide → Aluminium Oxide + Iron
- <chem>2Al+Fe2O3->Al2O3+2Fe</chem>
The Iron is reduced because it loses the Oxygen atoms.
Key Stage 4 Higher
Meaning
Reduction is when a positive ion in an ionic compound gains electrons.
About Reduction
- Reduction takes place in displacement reactions.
In the following redox reaction:
- Magnesium + Copper (II) Chloride → Magnesium Chloride + Copper
- Reduction of Copper: <chem>Cu^2+ + 2e^- -> Cu</chem>