ELECTRON TRANSFER REACTIONS: OXIDATION AND REDUCTION KEY TERMS AND CONCEPTS
CONCEPTS
Students will know:
· Oxidation occurs when an atom or ion loses one or more electrons and attains a more positive oxidation number.
· Reduction takes place when an atom or ion gains electrons and attains a more negative oxidation number.
· Oxidation and reduction always occurs together in a net process called a redox reaction.
· An oxidizing agent is the substance that gains electrons and is reduced during a redox reaction.
· A reducing agent is the substance that loses electrons and is oxidized during a redox reaction.
· Oxidation occurs when an atom or ion loses one or more electrons and attains a more positive oxidation number.
· Reduction takes place when an atom or ion gains electrons and attains a more negative oxidation number.
· Oxidation and reduction always occurs together in a net process called a redox reaction.
· An oxidizing agent is the substance that gains electrons and is reduced during a redox reaction.
· A reducing agent is the substance that loses electrons and is oxidized during a redox reaction.
KEY TERMS
Oxidation:
The process in which one or more electrons is lost by a chemical entity.
Reduction:
The process in which one or more electrons is gained by a chemical entity.
Oxidation-reduction (redox) Reaction:
The reaction in which one or more electrons are transferred between chemical entities.
Oxidation Number:
A number used to keep track of electrons in oxidation-reduction reactions according to certain rules.
Oxidation State:
Also known as oxidation number.
Oxidation Agent:
The reactant that is oxidized (gains electrons from another substance) during an oxidation-reduction reaction.
Reducing Agent:
The reactant that is oxidized (loses electrons to another substance) during an oxidation-reduction reaction.
Single Displacement Reaction:
Also called single-replacement reaction, is a type of oxidation-reduction chemical reaction when an element or ion moves out of one compound and into another. That is, another in a compound replaces one element. This is represented by the general reaction scheme: A + BC → AC + B.
The process in which one or more electrons is lost by a chemical entity.
Reduction:
The process in which one or more electrons is gained by a chemical entity.
Oxidation-reduction (redox) Reaction:
The reaction in which one or more electrons are transferred between chemical entities.
Oxidation Number:
A number used to keep track of electrons in oxidation-reduction reactions according to certain rules.
Oxidation State:
Also known as oxidation number.
Oxidation Agent:
The reactant that is oxidized (gains electrons from another substance) during an oxidation-reduction reaction.
Reducing Agent:
The reactant that is oxidized (loses electrons to another substance) during an oxidation-reduction reaction.
Single Displacement Reaction:
Also called single-replacement reaction, is a type of oxidation-reduction chemical reaction when an element or ion moves out of one compound and into another. That is, another in a compound replaces one element. This is represented by the general reaction scheme: A + BC → AC + B.
References
- Di Guiseppe, M., Haberer, S., Salciccioli, K., Sanader, M, Vavitsas, A. (2012) Chemistry 12. Toronto: Nelson Education Ltd.
- van Kessel, H., Jenkins, F., Davies, L., Plumb, D., Di Guiseppe, M., Lantz, O., Tompkins, D. (2003). Chemistry 12. Toronto: Thomson Canada Limited.
- http://www.wikipedia.org