Metal Extraction
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8 Terms
What is oxidation?
When metals react with oxygen and oxygen is gained in the reaction
What is reduction?
The process of extracting a metal from its oxide involves the loss of oxygen
What are the 2 types of Extraction techniques?
1. Reduction with carbon
2. Electrolysis
What metals use reduction by carbon for extraction
metals below carbon in the reactivity series: Zinc, Iron, Copper
How does reduction by carbon work?
Carbon is more reactive than metals below it, so it will remove oxygen from the metal and form carbon dioxide
What metals use electrolysis for extraction
Potassium, Sodium, Lithium, Calcium, Magnesium
Why is electrolysis used for the metals Potassium, Sodium, Lithium, Calcium, and Magnesium
Because metals are more reactive than carbon will not be reduced by it, so electrolysis is used instead
Why are the disadvantages of using electrolysis for extraction
Expensive
Note 
Flashcards (52)