Respuesta :
The correct option is option(a). i.e., copper. Copper is a substance that cannot be decomposed by a chemical change due to the atoms that makeup copper. The atom will alter if it decomposes. As opposed to this, a chemical change is just the dissolution and formation of chemical bonds between atoms.
Why elements Cannot be decomposed into simpler substances?
A material is considered an element if it only contains one type of atom. Elements like phosphorus (P4) and sulfur (S8) cannot be broken down into simpler molecules by chemical processes because atoms cannot be produced or destroyed during a chemical reaction.
What can be broken down by chemical change?
Chemical reactions have the power to transform a compound into less complex ones. For instance, we can separate water into its hydrogen and oxygen components using electrolysis.
Learn more about Chemical reactions: https://brainly.com/question/22817140
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