Answer:
C6H12O6 + 6O2 → 6CO2 + 6H2O.
Explanation:
I think the answer might be nuclear physics
1. There is no graph given
2. ENERGY LEVELS!!!
Boiling is the process of liquid(middle energy, flat line) turning into a gas(lots of energy, flat line), hope this helps
The basic units for density is

and any get of units that has those units in the proper place can be considered a density unit. The ones that has those specifically are A, B, E and F