Only when there is no product that is when a chemical reaction has not occured
Answer:
A mixture is a physical combination of substances thus it only requires physical processes to separate. However, a compound is chemically combined and can only be separated by chemical processes. Therefore, it is much harder to separate a compound than a mixture.
The answer is D. Use the equation PV=nRT
P=(.567mol)(.0821)(300K)/4.5L
