extracting metals Flashcards
1
Q
What extraction technique uses plants to obtain copper from ores containing only small amounts of copper?
A
Phytomining
2
Q
What is the missing step in the production process for a steel car part?
Mining ? Extracting Purifying Alloying Shaping
A
Concentrating
3
Q
Gold is not found as part of a chemical compound because it is…
A
Unreactive
4
Q
Why might it be difficult to say if a rock containing a metal is an ore?
A
The economics of extraction change over time
