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Reactivity series

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Question 19

The reaction between magnesium powder and copper(II) oxide is highly exothermic and is represented by the following equation:

Mg+CuO→MgO+Cu \text{Mg} + \text{CuO} \rightarrow \text{MgO} + \text{Cu} Mg+CuO→MgO+Cu
a.

What does this reaction show about the reactivity of copper compared to the reactivity of magnesium?

[1]
b.

Why is this reaction described as a displacement reaction?

[1]
c.

State two reasons why the term oxidation applies to magnesium in this reaction.

[2]
d.

Although this reaction is highly exothermic, it only begins after initial heat energy is supplied. State how this heat energy is typically supplied in a laboratory demonstration.

[1]

Reactivity series Questions

  1. IGCSE
  2. /Chemistry
  3. /Reactivity series