Interpretation: Four substances need to be identified that undergo a physical change if the temperature is reduced from
Concept Introduction: There are generally three
Explanation of Solution
In table 2.1, the physical properties of some substances are given. The four substances which can undergo a physical change when the temperature is reduced from
Here, chlorine is gas at room temperature and mercury, bromine, and water all are liquid at room temperature.
For chlorine, melting and boiling point is
Therefore, the change in physical state is from gas to liquid.
For mercury, melting and boiling point is
Therefore, the change in physical state is from liquid to solid.
For bromine, melting and boiling point is
Therefore, the change in physical state is from liquid to solid.
For water, melting and boiling point is
Therefore, the change in physical state is from liquid to solid.
Chapter 2 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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