ConcepTest on the Mole Concept ConcepTest on the Mole Concept Suppose we have 5 dozens of people. Assume everyone has two arms. 5 dozens 3. None of the above.
Students are unlikely to choose a wrong answer.
Go on to the next question. Suppose we have 7 dozens of CO 2 molecules. I am confused. Don t be surprised if students hang back and are afraid to give an answer. You can point out that oxygen does not exist as an O 2 molecule inside CO 2 .