In the process, the real causes of the war were swept under the rug, the better to facilitate economic partnerships and sentimental reunions of Civil War veterans.
Science. Explain why iron sulphide is a compound and not just a mixture of the two elements iron and sulphur. Explain why iron sulphide has different properties to a mixture of iron and sulphur and also describe and explain tests that can distinguish between iron sulphide and a mixture of iron and sulphur.
For example, you can combine iron filings with sulfur to form a mixture. All it takes is a magnet to separate the iron from the sulfur. On the other hand, if you heat the iron and sulfur, you form iron sulfide, which is a compound. Difficulty: Easy. Time Required: Minutes. Here's How: 1  First form a mixture.2  Stir some iron filings and sulfur together to form a powder.hen you melt a mixture of iron and sulfur, you get iron sulfide, which can form pyrite crystals. DEA/A.RIZZI, Getty Images. A mixture occurs when you combine matter in a way where the components can be separated again.