4. Which is an example of a chemical change?
A
Rust forming
C.
Candy bar melting
B.
Water boiling
D.
Pencil breaking

Respuesta :

Answer:

A.

Explanation:

A. Rust forming

is a example of a chemical change

Hope this helped you!!

Answer:

RUST FORMING

Explanation:

because it takes the chemical h2o to form rust