Topic 4 - Chemical Changes Flashcards
1
Q
Why is carbon an exception in the reactivity series?
A
It is not a metal and it is most commonly used to obtain a pure metal from an ore through displacement
2
Q
What is an ore?
A
A rock conatining a high precentage of metal which can be extracted for profit
3
Q
Which substances have been oxidised and reduced in this reaction?
Copper oxide + Carbon –> Carbon Oxide + Copper
A
Copper Oxide - Reduced
Carbon - Oxidised
4
Q
What is the reactivity series?
A
It shows us how reactive certain substances are
5
Q
List the reactivity series (as well as you can)
A
Potassium Sodium Lithium Calcium Magnesium Carbon Zinc Iron Hydrogen Copper
6
Q
Why is the reactivity series helpful?
A
It enables us to perform displacement reactions and to extract metals from ores
7
Q
What does OILRIG stand for?
A
Oxidation is losing electrons whereas Reduction in gaining electrons
