4. The presence of impurities in a solid/liquid would make the melting point/boiling point
A....
4. The presence of impurities in a solid/liquid would make the melting point/boiling point
A....
4. The presence of impurities in a solid/liquid would make the melting point/boiling point
A. Increase/Decrease
B. Decrease/Increase
C. Decrease/Decrease
D. Increase/Increase?
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