The chemical formula of limestone is CaCO₃.

Limestone is a sedimentary rock primarily composed of calcium carbonate, represented by the chemical formula CaCO₃. This compound consists of one calcium (Ca) atom, one carbon (C) atom, and three oxygen (O) atoms.

Formation of Limestone

Limestone forms through various processes, including:

• Biological Activity: Accumulation of shells and skeletons of marine organisms.
• Chemical Precipitation: Calcium carbonate precipitating from water.
• Mechanical Processes: Compaction of sediments over time.

Uses of Limestone

This versatile rock has several important applications:

• Construction: Used as a building material and in cement production.
• Agriculture: Helps to improve soil quality by neutralizing acidity.
• Industry: Serves as a raw material in various chemical processes.

Environmental Impact

While limestone is beneficial, its extraction and processing can have environmental consequences, such as habitat destruction and increased carbon emissions. Sustainable practices are essential to minimize these impacts.