ACS Chemistry 101 & 102 Final Exam Review questions with correct answers

What is the difference between a homogeneous and heterogeneous mixture? Can they be separated? - Answer A homogeneous mixture is a uniform composition throughout whereas a heterogeneous mixture has other substances. They can be separated but through physical processes. What is the difference between a physical and chemical property? Physical vs chemical change? - Answer A physical property is one that can be determined without changing the identity of the matter. A physical change is where the identity of the matter does not change. A chemical property is a property (only determined as a result of a chemical change or chemical process) in which the original substance is converted to a different substance. Whats the difference between an extensive property and an intensive property? - Answer An extensive property is dependent on the amount of matter. An intensive property is independent of the amount of matter. List the SI units in chemistry.