Unit 4 Flashcards
1
Q
reactivity series
A
potassium sodium calcium magnesium aluminium carbon zinc iron hydrogen copper silver gold
2
Q
more reactive metals
A
oxidised
3
Q
less reactive metals
A
reduced
4
Q
metal extraction
A
metals higher than carbon have to be extracted using electrolysis
5
Q
biological methods to extract metals
A
bioleaching - bacteria separates metals
phytoextraction - growing plants in soil
6
Q
factors affecting equilibrium position
A
- temperature
- pressure
- concentration
7
Q
pressure increase
A
position moves in the direction of fewest molecules of gas
8
Q
life cycle assessment
A
- choice of material
- manufacture
- product use
- disposal
