Question

Please help!!!

During an experiment, iron powder and sulfur powder were heated together to form a black mass. It was observed that a magnet, when brought near the black mass, did not attract the black mass. Which of the following correctly justifies the observation?


The black mass is a mixture and no longer retains the properties of iron.

The black mass is a mixture and retains the properties of iron.

The black mass is a pure substance and no longer retains the properties of iron.

The black mass is a pure substance and retains the properties of iron.

Answer 1

The answer is the black mass is a mixture and no longer retains the properties of iron.

First, iron powder and sulfur powder are different chemicals thus they are mixtures—not a pure substance.

Second, normally, iron is attracted to magnet. But in this case, because the magnet dis not attract the black mass then it means that the properties of iron is not retained or lost.

Answer 2

Answer:

the black mass is a mixture and no longer retains the property of iron