In the experiment, which of the following observations would suggest that a solid sample is a mixture? The
A.
solid can be ground to a fine powder
B.
density of the solid is 2.25gdm-3
C.
solid begins to melt at 573k but is not completely melted until 648k
D.
solid absorbs moisture from the atmosphere and turns into liquid
E.
solid melts at 300k
Correct Answer: Option C
Explanation
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