Critical Thinking
Use this table to answer the following question.
Element
Melting Point Boiling Point
(°C)
(°C)
-7.2
59
Bromine
Chlorine
Iodine
7 Infer You are given samples of the substances
shown in the table. The samples are labeled A,
B, and C. At room temperature, sample A is a
solid, sample B is a liquid, and sample C is a
gas. What are the identities of samples A, B, and
C? (Hint: Room temperature is about 20 °C.)
-100
110
-35
180