Iron is a solid, gray metal. Oxygen is a colorless gas. When they chemically combine, rust is made. Rust has a reddsh brown color. Why is rust different from the iron or oxygen that it is made of?
1 Answer
Dec 30, 2015
Because they react.
Explanation:
Iron(
The color before the reaction only matter if both reagents are liquid or aqueous and if they don't react.