Question

Heating a piece of iron, is considered a ________ ( physical/chemical) change, while heating a piece of coal ( carbon) is considered a _________ ( physical/ chemical) change.

Answer 1

Answer:

Chemical,physical

1st one chemical and 2nd one is physical

Answer 2

Answer:

Heating a piece of iron, is considered a physical change, while heating a piece of coal is considered a chemical change.