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If you just mix iron and sulphur together, you're still left with a pile of iron and sulphur that are distinctly separate and could be easily separated by throwing the mixture in water (iron sinks, sulphur powder floats). If they were to react together, to become iron sulphide, then they would be chemically bound to each other as a compound and wouldn't be able to be separated by physical means.
What else can I help you with?
Is iron sulfide a mixture or solution?
Iron sulfide is a pure compound. It can be as in aqueous medium too as a solution.
Describe how to separate a mixture of iron and sulfur?
Use a magnet to separate the iron particles from the mixture, as iron is magnetic and sulfur is not. Heat the mixture to a high temperature to burn off the sulfur, leaving behind the iron. Alternatively, dissolve the mixture in water to separate the sulfur, which will dissolve, leaving the iron behind.
Is unheated sulfur and iron filings is substance or mixture?
Sulfur and iron filings together are a mixture.
Why there is no substance formed when sulfur and iron is heated?
When sulfur and iron are heated together, they react to form iron sulfide. Iron sulfide is a compound, not a mixture, so it does not show the properties of its individual elements like sulfur and iron. The formation of this compound is a chemical reaction where the atoms of sulfur and iron rearrange to create a new substance with different properties.
Is heated sulfur and iron fillings is substance or mixtures?
Heating sulfur with iron fillings lead to the formation of iron sulfide - a chemical compound.
How is iron sulphide a compound and not just a mixture of iron and sulfur?
Because in a chemical compound is a chemical bond between the elements. From a mixture of iron and sulfur iron can be separated with a magnet.
Describe why iron filings and sulfur can be classified as element compound or mixture?
Because in a chemical compound is a chemical bond between the elements. From a mixture of iron and sulfur iron can be separated with a magnet.
What mineral is made by sulfur and iron and is also a mixture?
Pyrite is made of iron and sulfur and is the compound iron sulfide with the chemical formula FeS2. It is not a mixture of iron and sulfur. The iron and sulfur are chemically combined to form a compound.
Do substances in a mixture of iron and sulfur keep its own compound or mixture?
They keep their own properties.
What is formed when a mixture of powdered iron and sulfur is heated?
When a mixture of powdered iron and sulfur is heated, iron sulfide is formed. Iron sulfide is a compound composed of iron and sulfur atoms that have reacted together through a chemical reaction.
How do you know iron sulphide is not a mixture?
Because in a chemical compound is a chemical bond between the elements. From a mixture of iron and sulfur iron can be separated with a magnet.
Was there a new substance formed after heating the iron sulfur mixture?
Yes, a new substance, iron sulfide, was formed after heating the iron-sulfur mixture. Iron sulfide is a chemical compound that results from the combination of iron and sulfur atoms during the heating process.
Why can iron sulphide be classified as an element compound or a mixture?
Because in a chemical compound is a chemical bond between the elements. From a mixture of iron and sulfur iron can be separated with a magnet.
Is iron sulphide a compound mixture or element?
It is a compound because iron and sulfur are two individual elements that you can find on the periodic table.
Is iron sulfide a mixture or solution?
Iron sulfide is a pure compound. It can be as in aqueous medium too as a solution.
What are the differences between the mixture of iron and sulfur and the new compound you have made?
The mixture of iron and sulfur is a physical combination of two elements that can be easily separated by physical means, while the new compound is a chemical combination of iron and sulfur atoms that has different properties than the individual elements. The mixture retains the properties of its components, while the compound has a unique set of properties due to the formation of chemical bonds between the iron and sulfur atoms.
When a mixture of iron and sulfur are heated how would you classify the resulting material?
It depends on the temperature. If you only heat moderately, you will still have a mixture of iron and sulfur, even if the sulfur has melted and formed a kind of cement with the iron. If you put the mixture in a vacuum, and then heat up to the combustion temperature of the mixture, then you would get some amount of iron sulfide, which is a compound. You need the vacuum so that the sulfur, for instance, does not react with oxygen and just burn down to sulfur dioxide gas, probably leaving the iron mostly unaffected. If you have the exact ratio of iron to sulfur for reaction, you will get only iron sulfide compound, but any other ratio will leave either some iron or some sulfur unreacted.
