Reactivity of metals Flashcards
1
Q
What does Oxidation mean
A
When the metal gains oxygen to become a metal
oxide
2
Q
What does Reduction mean
A
When the metal oxide loses oxygen to become a
metal
3
Q
How to extract metals above carbon on the reactivity series
A
Extracted by electrolysis
4
Q
How to extract metals under carbon on the reactivity series
A
Extracted from their oxides by reduction with carbon
5
Q
What has happened here Fe2+ + 2e-→ Fe
A
The iron ion gains two electrons and becomes an iron atom.
The iron has been reduced – it has gained two electrons.
6
Q
Does oxidation lose or gain electrons
A
lose
7
Q
Does reduction lose or gain electrons
A
gain
