During an experiment, it is observed that iron powder sinks in water and sulfur powder floats in water. What will most likely be observed when sulfur powder and iron powder are mixed together and then added to water?

  The iron will sink and the sulfu will float

Explanation:  The iron/sulfu mixture only mixes the two elements.  Unless one ignites them, they will remain elements and can be separated based on the difference in their densities.

the answer would be a