Extracting Metals And Equilibria Flashcards Preview

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Flashcards in Extracting Metals And Equilibria Deck (12):
1

What is oxidation

The reaction with, or addition of oxygen

2

What is reduction

The removal of oxygen

3

What do combustion reactions involve

Oxidation

4

Metal + water —> ?

Metal hydroxide + hydrogen

5

What metals react vigorously with water

Calcium, potassium, sodium and lithium

6

What metals react more with steam

Magnesium, zinc, iron

7

What happens in displacement reactions

A more reactive element reacts to take the place of a less reactive element in a compound

8

What happens during a displacement reaction

The more reactive metal is oxidised and the less reactive metal is reduced

9

What happens when you put a reactive metal into a solution of a less reactive metal salt

The reactive metal will replace the less reactive metal in a salt

10

What happens when you put a less reactive metal into a solution of a more reactive metal salt

Nothing

11

What is a metal ore

A rock which contains enough metal to make it economically worthwhile extracting the metal from it

12

How can a metal be extracted from its ore

Chemically by reduction using carbon