Expand is a combination of the Latin words ex-, meaning out, and pandere, to spread. The idea of spreading out was always there, though the current idea of something actually becoming larger was first recorded in the mid-17th century.
Aragonite and calcite are two minerals formed from calcium carbonate (CaCO. Lime (calcium oxide) is produced by heating limestone or seashells (calcium carbonate). The chemistry of calcium carbonate is similar to that of sodium carbonate and potassium carbonate except that calcium carbonate is not soluble in water.
The chemical formula of calcium carbonate is CaCO3; calcium carbonate contain calcium, carbon and oxygen.t is made up of carbon, oxygen and calcium. A carbonate contains oxygen and carbon so you know that, and then you can see that as it is called calcium carbonate it also conta â¦ ins calcium. :).