TEAS Sentence Correction Practice Test 2

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Question : 14 of 40

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How does an impurity affect the melting point and boiling point of a substance?

Impurity lowers the boiling point and lowers the melting point.
Impurity lowers the boiling point and raises the melting point.
Impurity raises the boiling point and lowers the melting point.
Impurity raises the boiling point and raises the melting point.

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