Questions: Chemically pure substances will freeze: Over a range of temperatures. At a specific temperature. Chemically pure substances tend not to freeze.

Solution Steps

Chemically pure substances have a specific freezing point, which is the temperature at which they transition from liquid to solid.

• "Over a range of temperatures" implies a gradual transition, which is not typical for pure substances.
• "At a specific temperature" aligns with the definition of a pure substance having a distinct freezing point.
• "Chemically pure substances tend not to freeze" is incorrect as pure substances do freeze at their specific freezing points.

Final Answer