Question

Martin mixed sulfur (a yellow solid) with iron filings (a black solid) in a ceramic dish called a crucible. Then he separated them using a magnet. What kind of a change is this? change in state mixing and separation replacement synthesis

Answer 1

The correct answer would be the second option. It is mixing and separation that is happening in the sentence described. He mixed two different substances which has different physical properties. By taking advantage of the differences especially their magnetic properties, he separated the substances by using a magnet since the iron filings are attracted to the magnet.

Answer 2

Separation of iron filings from its mixture with sulphur is an example of mixing and separation.

Explanation:

Detachment strategies abuse different physical and concoction properties of substances. At the point when a blend experiences partition it might bring about at least two blends or even unadulterated substances. Here partition of iron filings is accomplished by utilizing the attractive property of iron.  

Not many substances happen in unadulterated structure in nature. So as to get unadulterated substances, different partition methods must be utilized. Instances of partition methods are chromatographic detachment, centrifugation, electrophoresis, and so on.