Water and ethanol can be separated by heating the ethanol until it boils away from the water. What type of change is this?
A) a physical change
B) a chemical change
C) a molecular change
D) a decomposition
E) none of the above
Question 2
A chemical change involves the formation or breaking of
A) an atom.
B) the phase of the material.
C) a chemical bond.
D) all of the above