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When chalk (calcium carbonate) is heated, it undergoes thermal decomposition to form calcium oxide (quicklime) and carbon dioxide gas. This reaction is predominantly endothermic, requiring heat energy to drive the decomposition process.
The decomposition reaction is:MgCO3 = MgO + CO2
When marble is heated, it undergoes a chemical reaction called thermal decomposition. This reaction breaks down the calcium carbonate (CaCO3) in marble into calcium oxide (CaO) and carbon dioxide (CO2) gas.
An example is the preparation of calcium oxide from calcium carbonate.
A thermal decomposition reaction occur:CaCO3 = CaO + CO2
When calcium carbonate undergoes decomposition, it forms calcium oxide (quicklime) and carbon dioxide gas. The balanced chemical equation for this reaction is: CaCO3(s) -> CaO(s) + CO2(g).
When CaCO3 undergoes a decomposition reaction, it breaks down into calcium oxide (CaO) and carbon dioxide (CO2).
The thermal decomposition of lead carbonate (PbCO3) produces lead oxide (PbO) and carbon dioxide (CO2) as the products.
When calcium carbonate is heated, it undergoes thermal decomposition to produce calcium oxide and carbon dioxide. This reaction releases the carbon that was originally part of the calcium carbonate as carbon dioxide gas.
When copper carbonate is heated, it undergoes a decomposition reaction, where it breaks down into copper oxide, carbon dioxide, and oxygen gas. The reaction can be summarized as: CuCO3(s) -> CuO(s) + CO2(g) + O2(g).
In a decomposition reaction, a single compound breaks down into two or more simpler substances. The products of a decomposition reaction are the simpler substances that result from the breakdown of the original compound.
The decomposition reaction of calcium carbonate (CaCO3) in an open container is irreversible. When heated, calcium carbonate decomposes into calcium oxide (CaO) and carbon dioxide (CO2), and this process is non-reversible under normal conditions.
The thermal decomposition reaction of zinc carbonate can be represented by the equation: ZnCO3(s) → ZnO(s) + CO2(g)
The reaction type that has only one reactant is called a unimolecular reaction. In a unimolecular reaction, a single reactant molecule undergoes a chemical transformation to form one or more products. An example of a unimolecular reaction is the thermal decomposition of a single molecule.
When lead carbonate is heated, it undergoes thermal decomposition to form lead oxide and carbon dioxide gas. The chemical equation for this reaction is: PbCO3(s) -> PbO(s) + CO2(g).
When copper carbonate is heated, a thermal decomposition reaction occurs. This reaction causes copper carbonate to break down into copper oxide and carbon dioxide gas, which is released as a byproduct.
The decomposition reaction is:MgCO3 = MgO + CO2