When calcium carbonate (CaCO₃) reacts with hydrogen peroxide (H₂O₂), a decomposition reaction can occur, particularly in the presence of an acid. The hydrogen peroxide may release oxygen gas (O₂) as it decomposes, while the calcium carbonate may react with any acid present to produce calcium salts, water, and carbon dioxide (CO₂) gas. Overall, the reaction can produce effervescence due to the release of CO₂ and O₂. However, under normal conditions, the direct reaction between just calcium carbonate and hydrogen peroxide is not significant.
A decomposition reaction needs the addition of a catalyst or heat to proceed. For instance hydrogen peroxide will break down into water and oxygen gas in the presence of a catalyst; and calcium carbonate will break down into calcium oxide and carbon dioxide gas when heated.
The chemical reaction goes faster if calcium carbonate is powdered.
The reaction between calcium carbonate (CaCO₃) and disodium edetate (Na₂EDTA) involves the chelation of calcium ions by EDTA. When disodium edetate is added to a solution containing calcium carbonate, it forms a stable complex with the calcium ions, resulting in the dissolution of calcium carbonate. This reaction is often used in analytical chemistry to quantify calcium levels or in various applications where calcium removal is desired.
Tricalcium citrate and water
An example is the preparation of calcium oxide from calcium carbonate.
There is no direct chemical reaction between calcium carbonate and hydrogen peroxide. Calcium carbonate is a stable compound and does not readily react with hydrogen peroxide under normal conditions.
When hydrogen peroxide (H2O2) reacts with chalk (calcium carbonate, CaCO3), the chalk acts as a catalyst to break down the hydrogen peroxide into water (H2O) and oxygen (O2) gas. This reaction produces bubbles of oxygen gas as a result of the decomposition of hydrogen peroxide.
When calcium carbonate reacts with hydrogen bromide, calcium bromide, water, and carbon dioxide are produced. The chemical equation for this reaction is: CaCO3 + 2HBr -> CaBr2 + H2O + CO2.
The balanced chemical equation for the reaction between calcium carbonate (CaCO3) and hydrogen (H2) to form calcium oxide (CaO) is: CaCO3 + H2 -> CaO + CO2
When calcium hydrogen carbonate reacts with hydrochloric acid, it forms calcium chloride, carbon dioxide gas, and water. The balanced chemical equation for the reaction is Ca(HCO3)2 + 2HCl -> CaCl2 + 2CO2 + 2H2O.
Calcium hydrogen carbonate is composed of calcium ions (Ca^2+), hydrogen carbonate ions (HCO3^-), and water molecules (H2O). When dissolved in water, calcium hydrogen carbonate dissociates to form these ions.
The equivalent weight of calcium carbonate can be calculated by dividing its molecular weight by the number of acidic hydrogen ions that it can donate in a reaction. In the case of calcium carbonate, it can donate two moles of hydrogen ions, so the equivalent weight would be its molecular weight divided by 2.
The hydrogen carbonate solution would turn cloudy white due to the formation of calcium carbonate precipitate as a result of the reaction between hydrogen carbonate and calcium ions in the snails' shells.
the chemical equation for the decomposition of calcium hydrogen carbonate is given below.Ca(HCO3)2(aq) → CO2(g) + H2O(l) + CaCO3(s).It is a balance chmeical reaction.
A decomposition reaction needs the addition of a catalyst or heat to proceed. For instance hydrogen peroxide will break down into water and oxygen gas in the presence of a catalyst; and calcium carbonate will break down into calcium oxide and carbon dioxide gas when heated.
There is no reaction and thus no release of gas.
The precipitate produced by the reaction between calcium chloride and potassium carbonate is calcium carbonate. When calcium chloride and potassium carbonate are mixed together, a double displacement reaction occurs, leading to the formation of calcium carbonate, which is insoluble and thus precipitates out of the solution.