Question

Define chemical changes!!​

Answer 1

Answer:

Hi friends

Explanation:

A chemical change occurs when a new substance is formed through a chemical reaction like when fruit ripens or rots. When something undergoes a "chemical reaction" and a new substance is formed as a result, we call this chemical change. ... The iron reacts with water and oxygen to create a new substance — rust.

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Answer 2

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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