reactivity & extraction of metals Flashcards
1
Q
oxidised
A
oxygen is added
2
Q
reduction
A
oxygen is removed
3
Q
chemical name for rust
A
hydrated iron (III) oxide
4
Q
2 substances needed for iron to rust
A
- oxygen
- water
5
Q
type of reaction when iron rusts
A
oxidation
6
Q
some iron objects are coated with a layer of zinc to prevent rusting, name this type of rust prevention
A
galvanisation
7
Q
which metal is most suitable for galvanising iron
A
zinc
8
Q
galvanising
A
process where the iron to be protected is coated with a layer of zinc
9
Q
redox reaction
A
where both oxidation and reduction are taking place
