Question

(a) When copper (II) oxide is heated at 800 degrees Celsius undergoing the reaction shown by the equation
4CuO --> 2Cu₂O + O₂
(I) identify the changes of oxidation numbers of copper and oxygen in this reaction. explain in terms of changes in oxidation numbers why this is a redox reaction

Answer 1

Explanation:

(a) When copper (II) oxide is heated at 800 degrees Celsius undergoing the reaction shown by the equation

4CuO --> 2Cu₂O + O₂

(I) identify the changes of oxidation numbers of copper and oxygen in this reaction. explain in terms of changes in oxidation numbers why this is a redox reaction

Answer 2

Answer:

In CuO ,oxidation no of Cu is +2 and in Cu2O it is 1

Explanation:

CuO =0

x+(-2)=0

x=+2

Cu2O=0

2x+(-2)=0

2x=2

x=1