Question

Activity to show the heating of copper powder in air

Answer 1

Activity:

Copper powder is taken in a clean petri dish and heated. Gradually we observe that the surface of the copper powder starts becoming black.

This black colour substance layering over the copper powder is mainly due to surface oxidation and the formation of a compound known as copper oxide.

This follows the basic chemical process of oxidation where copper reacts with oxygen present in the air on heating in order to form copper oxide.

Answer 2

Answer:

Copper powder is taken in a clean petri dish and heated. Gradually we observe that the surface of the copper powder starts becoming black.

This black colour substance layering over the copper powder is mainly due to surface oxidation and the formation of a compound known as copper oxide.

This follows the basic chemical process of oxidation where copper reacts with oxygen present in the air on heating in order to form copper oxide.

Explanation: