What two elements make limestone?

Answer 1

Limestone is a sedimentary rock composed largely of the mineral calcite (calcium carbonate: CaCO3) Ca = Calcium; It has an Atomic Mass of 40.078 amu. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth's crust. As a major material used in mineralization of bones and shells, calcium is the most abundant metal by mass in manyanimals.

C = Carbon; isnonmetallic and tetravalent---making four electrons available to form covalent chemical bonds. It can be black amorphous powder like soot, grey and soft like graphite or clear and hard like diamond

O = Oxygen; It is a member of the chalcogen group on the Periodic Table, and is a highly reactive nonmetallic period 2 element that readily forms compounds (notably oxides) with almost all other elements

Answer 2

Limestone is primarily composed of the minerals calcite and aragonite, which are both forms of calcium carbonate. These minerals are typically formed from the accumulation of shells, coral, algae, and other organic materials over millions of years.

Answer 3

Limestone is basically CaCO3 and is this made up of THREE elements. They are Calcium, Carbon and Oxygen.