What is the general composition and structure of ionic compounds? - A crystal consists of many alternating cations and anions bonded together in a matrix.
- Ions in an amorphous mixture in a “sea of elections”
- A crystal consists of many cations and anions randomly bonded together.
- Ions in an amorphous mixture.

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.