Question

Choose all of the examples of chemical changes.

Answer 1

I think d

Rust is a molecule that is composed of two element As the rust forms on the surface of the iron, it flakes off to expose more iron, which will continue to rust. Rust is clearly a substance that is different from iron. Rusting is an example of a chemical change

Answer 2

Sorry I’m late to answer this but it would be D because a chemical property of iron is that it is capable of combing with oxygen to form iron oxide, the chemical name of rust.