Describe what the common name for the calcium carbonate (CaCO3) is called and what type of chemical reaction this is in words and in a chemistry format. Thanks.
2007-04-23 16:54:39 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Calcium carbonate is also called limestone. Most probably, it formed from the reaction of calcium oxide in water with dissolved carbon dioxide: CaO + CO2 -> CaCO3. This salt is not very soluble in water, and as water evaporates from a pool, the salt forms a scale on surfaces. People with "hard water" have a large concentration of CaCO3 or the bicarbonate in water, and use ion exchangers with common salt to exchange sodium for calcium. The sodium salts are more soluble, and calcium chloride is more soluble.
2007-04-23 17:02:58 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋
TUMS.
2007-04-24 00:01:54 · answer #2 · answered by TJTB 7 · 0⤊ 0⤋