What happens when a chemical union occurs?

Answer 1

when a chemical union occurs the individual elements lose their own physical properties and forms a new set of properties

Answer 2

When a chemical union occurs, atoms or molecules combine to form a new substance with different properties than the original materials. This process involves the rearrangement of atoms to create new chemical bonds, resulting in the formation of a new compound. Energy may be released or absorbed during the reaction, depending on the specific chemical bonds being formed or broken.