Calcium
No, it is not. Calcium is a metal but calcium carbonate is not.
Calcium is a metal
No, calcium carbonate (CaCO3) is the calcium salt of carbonic acid (H2CO3). If a compound has the name of a metal in it (sodium, calcium, copper, etc) it is generally not an acid but a salt. A salt is formed when a metal ion or other positive ion takes the place of hydrogen in an acid.
Calcium Carbonate :)
Calcium oxide
metal
Calcium Carbonate - also called limestone, calcite, chalk, and marble.
Limescale is mostly calcium carbonate with some magnesium carbonate mixed in there as well. So the answer would be calcium.
The scientific name for marble is calcium carbonate. Other things that fall under the IUPAC name calcium carbonate are limestone, chalk, aragonite, and calcite.
metal carbonate + acid = metal salt + carbon dioxide + water e.g. calcium carbonate + hydrochloric acid = calcium chloride + water + carbon dioxide CaCO3 + 2HCl = CaCl2 + H2O +CO2
Nope - it's a mineral - calcium carbonate.
calcium carbonate, CaCO3