Which of the following would support the conclusion that a solid sample is a mixture?
a
the solid can be ground to a fine powder
b
the density of the solid is 2.25 g dm3
c
the solid has a melting range of 300oC to 375oC
d
the solid absorbs moisture from the atmosphere
Explanation
Correct Option
cNo explanation available
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Godbless236
3 years ago
there are two criteria for determining the purity of a substance:
1. melting or boiling point: pure substance melt or boil at a fixed temperature .but impure substance do this over a range of temperatures e.g:if the melting point was 320 for the normal pure substance as becomes impure it may melt at a range lets say between 280 to 300 oC.
