Matter can undergo both chemical and physical changes. What indicates that the change was definitely
chemical?

The temperature changed.

A precipitate formed

The color changed.

A gas formed

Respuesta :

Answer:

it's the third one

Explanation:

indicates that the change was definitely chemical when the a precipitate formed.

What is chemical and physical transformation?

A physical transformation is different from a chemical transformation because: in a chemical transformation, new substances are formed, whereas the physical transformation changes the shape of the material, but its composition is the same.

To summarize, a chemical transformation involves chemical reactions, which in turn will form new compounds or substances. On the other hand, physical transformation requires that the substance remains the same, only changing its physical state or organization of matter.

See more about chemical transformation at brainly.com/question/8210521