Question

Which of the following describes an example of a material undergoing a chemical change to become another material with different characteristics?
A. Iron turns to rust when it is exposed to oxygen.

B. When water boils, it turns into vapor, which is a gas.

C. Oxygen can become liquid at a very low temperature

D. Gold can be spread out very thin to cover a large area.

F. Other :

Answer 1

A. iron turns to rust when it is exposed to oxygen :)