Biology, 09.11.2020 19:40 jasmine12314

A student is examining the liquid mercury inside a thermometer. If the liquid is composed of only mercury atoms, what can the student conclude? A :the liquid is an impure substance because it is in a liquid state.
The liquid is a pure substance because it is made up of elements
The liquid is an impure substance because it is inside a thermometer.
The liquid is a pure substance because it is made up of mixtures.

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