Question

what is a chemical change​

Answer 1

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Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

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Answer 2

Answer:

When there is a change in the chemical composition of the body then this change is known as chemical change.

The new substance so formed has different chemical properties from the initial state of the body.