Corrosion Flashcards
1
Q
Define oxidation
A
The gain of oxygen, or loss of electrons by a substance during a chemical reaction
2
Q
Define reduction
A
The loss of oxygen gain of electrons or gain of hydrogen by a substance during a chemical reaction
3
Q
Define rusting
A
Rusting occurs when iron or steel reacts with oxygen and water. The overall reaction is
iron + oxygen + water-> hydrated iron (III) oxide
4
Q
Define oxidise
A
Chemical substance are oxidised by the addition of oxygen removal of hydrogen or the removal of electrons
5
Q
Define redox reaction
A
Oxidation and reduction always take place together. The combined reaction is called a redox reaction
