Question

Give your observation
Carbon monoxide is passed over heated copper (II)oxide

Answer 1

As carbon monoxide is a strong reducing agent , it will reduce copper (II) oxide to copper.It will make carbon dioxide by combining with oxygen.

Here is the reaction :

CuO+CO -------> Cu + CO2



Hope it helps you..........................

Answer 2

ANSWER

Black powdery copper oxide changes into red shiny copper metal.

Explanation:

CuO +CO= Cu +CO2