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