Question

The heating of limestone to redness in contect with air is known as?

Answer 1

Calcinations

It is the process of heating the limestone to redness in the presence of atmospheric air. During this process carbon dioxide is driven out and calcium oxide is left as the final product.

Answer 2

Answer:

Calcination

Explanation:

The heating of a material to redness without in contact with air, is known as burning.

The heating of a material to redness in contact with air, is known as calcination.