CH-398
Purity and melting point
Chemistry · Secondary 3 · Easy · Purity and melting point
A sample of impure ethanol is heated. Which observation shows that the ethanol is impure?
- It boils over a range of temperatures.
- It produces only carbon dioxide and water when burned in air.
- It does not mix with water at all.
- It boils at exactly and stays constant.
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