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What is Understanding Decomposition Reactions about?
Decomposition reactions are the opposite of combination reactions, where a compound splits up into two or more simpler substances upon the addition of heat. For example, mercury(II) oxide decomposes into mercury metal and oxygen gas when heated. Calcium carbonate also decomposes when heated, splitting into calcium oxide and carbon dioxide. Most decomposition reactions are endothermic, requiring heat energy to break apart the bonds in the original compound.
- Author
- joe
- Language
- EN