There is no symbol that will show weather or not heat is needed in a decomposition reaction.
Decomposition reaction: CaCO3(s) --(heat)--> CaOs + CO2(g)
Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance.
Heat can be used to break compounds because there is a chemical reaction that takes place and it causes the particles in the compound to break
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CH4 + 2O2 📷 CO2 + 2H2O + Heat
It is an endothermic reaction. An example is thermal decomposition.
Decomposition reaction: CaCO3(s) --(heat)--> CaOs + CO2(g)
Decomposition!
Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance.
Thermal decomposition
Thermal decomposition
Heat can be used to break compounds because there is a chemical reaction that takes place and it causes the particles in the compound to break
fusion
Thermal decomposition refers to the process of a substance decomposing as a result of being exposed to heat. The heat typically breaks the chemical bonds in the substance, which leads to the decomposition.
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CH4 + 2O2 📷 CO2 + 2H2O + Heat
Thermal decomposition. MgCO3(s) ==heat==> MgO + CO2