Answer:
carbon with graphite as the allotrope
A. phase changing. Physical change is any change in matter that involves the substance going from one physical state to another, and phase change is most commonly used to describe transitions between solid, liquid and gaseous states of matter.
It changes state
Meaning, it goes from solid to liquid, making it change its state. Hope this helped.
A solution that appears dark orange in color is not absorbing all orange wavelengths of light.
I believe the answer is A. 40 mL