Which of the following changes must the student make to the illustration to accurately represent the same substance in the liquid phase? A The illustration should show increased movement of the particles. B Each individual particle should be redrawn to be much larger. edras с The space between the particles in the drawing should be made smaller. D The shape of each particle must reflect the shape of the container.

4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.