I thank that your answer is C.
2021 hoped I helped you god bless you
Boiling water results in no chemical change. If water is just heated to its boiling temperature then there is a physical change.
Separation of components of crude oil
This is the reaction formula,
4Fe+3O2=2Fe2O3
<span>3Fe+202=Fe3O4
it has o</span>xygen atom after it's rusted
