The equation is H2O + CO2 + CaCO3 --> Ca(HCO3)2
Calcium carbonate + heat= Calcium oxide + carbon dioxide is the word equation for the endothermic reaction which occurs in lime kiln.
Calcium Carbonate + Heat ------------ Calcium Oxide + Carbon Dioxide
metal carbonate + acid = metal salt + carbon dioxide + water e.g. calcium carbonate + hydrochloric acid = calcium chloride + water + carbon dioxide CaCO3 + 2HCl = CaCl2 + H2O +CO2
In the absence of water, not much. However, when water is present, the carbon dioxide reacts with it to form carbonic acid. This reaction makes the water more acidic. The carbonate ion is protonated to form calcium bicarbonate. This compound is water soluble, unlike calcium carbonate. Thus, the solid calcium carbonate dissolves as calcium bicarbonate, due to the increased acidity of the water.
A reaction between an acid and a carbonate gives a salt, water and carbon dioxide. So the word equation is: acid + carbonate -----> salt + carbon dioxide + water eg: hydrochloric acid + calcium carbonate ----> calcium chloride + carbon dioxide + water See: http://www.sky-web.net/science/reaction-types.htm
I don't know the equation but i have heard that down in certain depths calcium bicarbonate can be decomposed. However if it helps the equation to make calcuim bicarbonate is: Carbon dioxide + calcium carbonate + water Leads to Calcium Bicarbonate best i could do, I've been researching for a phytoplankton that decomposes calcium bicarbonate, that's how i found this and thought i should help contribute any of my knowledge, Kimo,
Calcium bicarbonate and calcium carbonate.
Calcium carbonate --> Calcium oxide + Carbon dioxide Its an example of thermal decomposition.
Carbon dioxide does not react with calcium carbonate unless water is present. Carbon dioxide plus calcium carbonate plus water produces calcium bicarbonate. The balanced chemical equation is:CO2(g) + CaCO3(s) + H2O(l) --> Ca(HCO3)2(aq)
Calcium carbonate is heated to from calcium oxide and carbon dioxide as illustrated by the chemical equation CaCO3(s) ===> CaO(s) + CO2(g).
Calcium carbonate heated to form calcium oxide and carbon dioxide as shown by the equation CaCO3(s) → CaO(s) + CO2(g).
In general, Calcium carbonate is insoluble in water.However, if the water has Carbon dioxide (CO2) in it, Calcium bicarbonate (Ca(HCO3)2) will be created.
CaCl2 + 2NaHCO3 --> 2NaCl + CaCO3 +CO2 +H2O
Calcium carbonate thermally decomposes when heated to form calcium oxide powder and carbon dioxide gas. The word equation: calcium carbonate --> calcium oxide + carbon dioxide As a symbol equation: CaCO3 --> CaO + CO2
CaCO3 ____> CaO+CO2
calcium hydroxide + carbon dioxide = calcium carbonate + water
Some of the process that fix carbon dioxide are limewater + carbon dioxide equals calcium carbonate + water. Another is calcium carbonate + water + carbon dioxide = aqueous calcium bicarbonate. These equations work in reverse to release carbon dioxide.