2A Flashcards
1
Q
Why is boiling water an example of a physical change but iron turning to rust an example of a chemical change?
A
Boiling water(H2O) is a physical change because you change the state of matter from a liquid to a gas but it is still H2O.
Iron (Fe) turning to rust (Fe2O3) is a chemical change because a chemical reaction occurs that creates a new substance.
