5.61 - Displacement reactions Flashcards
1
Q
What is a displacement reaction?
A
A reaction in which one element replaces another element in a compound
2
Q
What are displacement reactions examples of?
A
Redox reactions
3
Q
What do all displacement reactions have in common?
A
There is oxidation of one element, and reduction of another
4
Q
What type of equation shows a displacement reaction the best?
A
An ionic equation, as it shows only the changes in ions
5
Q
In the following reaction, what is oxidised, and what is reduced?
Mg(s) + CuSO4(aq) -> Cu(s) + MgSO4(aq)
A
Magnesium is oxidised, and copper is reduced
6
Q
Why does magnesium displace copper in the sulfate compound?
A
Because magnesium is higher than copper in the reactivity series
