Chemistry, 02.09.2021 06:30, camp591

A student is testing a solid material determine whether it is a pure substance or a mixture. Which observation would MOST likely indicate that the material is a mixture?
А The material has crystals of two different colors.
B. The material does not dissolve completely in water.
С The material does not melt when it is heated over a burner.
D The material reacts with an acid solution to form bubbles of gas.
bunal means?

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A student is testing a solid material determine whether it is a pure substance or a mixture. Which...