Help neeeeeeeeeeeeeeededdddddddd badddd..
How is a pure substance different from a mixture?
A. Mixtures cannot be separated by physical means
B. A mixture is made of one substance
C. Pure substances cannot be separated by physical means D. A pure substance is heterogeneous
I think the awnser would be C. becuase Pure Substances are made of mostly the same material and properties Such as: Nitrogen Gas, Oxygen Gas, Carbon, Iorn, Water, Sugar and Salt.
