Answer
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Work Step by Step
Halothane’s molecular formula is $C_2HBrClF_3$, meaning it contains:
Carbon (C) – 2 atoms
Shown as black balls
Hydrogen (H) – 1 atom
Gray ball
Bromine (Br) – 1 atom
Represented by a brown ball
Chlorine (Cl) – 1 atom
Green ball
Fluorine (F) – 3 atoms
Yellow balls