13. A white cottony powder was tested and heated. After some time, it melts completely. What does it imply?

A. It is a combination of pure substance and mixture.
B. It is a homogeneous mixture.
C. It is a pure substance.
D. It is a mixture.​


Sagot :

Answer:

  • D.It is a mixture

Explanation:

correct me if I'm wrong.

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