Metals Flashcards
1
Q
Metal + Water
A
Metal hydroxide + hydrogen
2
Q
Oxidation
A
When a metal loses electrons and gains oxygen
3
Q
Reduction
A
When a metal gains electrons
4
Q
Redox reaction
A
A reaction where oxidation and reduction occur simultaneously
5
Q
Ores
A
Naturally occurring rocks that contain sufficient amounts of metal or metal compounds
6
Q
Bioleeching
A
Using bacteria to extract metals from their ores
7
Q
Phytoextraction
A
Using plants to extract metals from their ores
8
Q
Low grade ore
A
An ore containing a low amount of metal
9
Q
Displacement reaction
A
A reaction where a more reactive metal repla es a less reactive one from its compound
10
Q
Alloy
A
A mixture of disorganised metals
