Question

formula of limestone

Answer 1

limestone is calcium carbonate, it's chemical formula is CaCo3
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Answer 2

The formula of limestone: CaCo3  

EXPLANATION:

Chemical name: Calcium carbonate, and known as calcite.

Commercially, it is known as chalk or marble.

Occurrence: Limestone is an impure form of calcium carbonate and occurs as a natural sedimentary rock in two forms – calcite and dolomite.  

Physical properties: In calcite form, limestone occurs as odorless white material with a melting point of 13390C and density of 2.71mg/dL

Chemical properties:  

Limestone or calcium carbonate upon heating undergoes thermal decomposition reaction to form calcium oxide and releases carbon dioxide gas.

It reacts with water to form calcium bicarbonate salt.

Uses: Limestone is widely used as construction and building materials mainly for flooring.