Limestone, chalk and marble are different forms of ______.

The correct answer is calcium carbonate.

Key Points

• ​The primary difference between limestone and marble is that limestone is a sedimentary rock, typically composed of calcium carbonate fossils, and marble is a metamorphic rock.
• Limestone bureaucracy while shells, sand, and dirt are deposited at the lowest of oceans and lakes and through the years solidify into rock.
• Calcium carbonate does have (at the least)  crystal bureaucracy (aragonite and calcite), but I suppose limestone, chalk, and marble are all calcite.
• Calcium carbonate and its bureaucracy: In nature, calcium carbonate happens inside the styles of chalk, limestone, and marble.

Additional Information

• The primary uses of sodium carbonate are as a water softener, food processing aid, pH modifier, swimming pool chemical, and electrolyte.
• K2CO3 is likewise known as potash carbonate and is utilized in fertilizers, agrochemicals, warmness-resistant glass, soaps, and within the production of other chemicals.
• Magnesium carbonate is a magnesium salt with the system CMgO3.
• Calcium carbonate is a nutritional supplement used when the quantity of calcium taken inside the weight-reduction plan isn't enough.