Final answer:
The chemicals in the beakers can be assigned based on their boiling points.
Step-by-step explanation:
The chemicals in the beakers can be assigned as follows:
Beaker A: Cesium Chloride (CsCl)
Beaker B: Hydrochloric Acid (HCl)
Beaker C: Argon (Ar)
Beaker D: Hydrogen Fluoride (HF)
The reasoning behind this assignment is based on the boiling points of the chemicals.
Beaker B has a higher boiling point than Beaker D, so it contains Hydrochloric Acid which has a higher boiling point than Hydrogen Fluoride.
Beaker D has a higher boiling point than Beaker A, so it contains Hydrogen Fluoride which has a higher boiling point than Cesium Chloride.
Beaker A has a higher boiling point than Beaker C, so it contains Cesium Chloride which has a higher boiling point than Argon.