Answer:
fe+s is a mixture of iron and sulphur and it can be separated by magnetic separation. But FeS is a compound formed by heating iron and sulphur together.it can't be separated by any method.
Explanation:
I would say C but don't hold it against me
Answer:
No because there is no oxygen in the package
Answer:

Explanation:
The first thing to have in mind is that the Ksp (constant of solubility) gives you an idea of how much soluble a salt is. <u>If the concentration of ions of that salt exceeds the kps, the salt will precipitate</u>.
The Kps of all these salts are very small compared to the 0.1 M concentration of the anions so all of them will precipitate.
The smaller the constant, the faster the salt precipitates
Having that concept in mind, the order of precipitation from first to last would be:
