- A car fender is sometimes made of metal
- Metal rusts
- Hence, a car fender might rust

- A car fender might rust
- Rust forming is a kind of chemical change
- Therefore, a rusting car fender is an example of chemical change

Therefore, a rusting car fender is an example of chemical change
[Question]Which is an example of a chemical change?
[Context]- A car fender is sometimes made of metal 
- Metal rusts 
- Rust forming is a kind of chemical change