Why some metals are easier to pull from the earth than others
In short: Extracting metal from ore isn't a one-size-fits-all process. This video explains how the chemical reactivity of a metal dictates the industrial methods used to isolate it from the earth.
The extraction process begins with mining and processing metal ores. The specific method used depends on a metal's position in the reactivity series. Metals less reactive than carbon can be extracted through displacement reactions, such as using carbon to extract iron from iron oxide.
For more reactive metals, simpler chemical reactions aren't enough. These require electrolysis, a process that uses electricity to drive the extraction. An example of this is the extraction of calcium from calcium oxide.
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Sources
- Summary by Intellect · source: KS3 Chemistry - Extracting Metals from Ores
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