Iron is a pure substance. It's an element (Fe) and a bar of Iron is no mixture.
If it was pure iron, then by definition it would be pure.
However iron is rarely pure, it is usually in alloy with something.
No, Iron is a homogeneous mixture as long as the iron is pure
An iron sand mixture is not a pure substance because it consists of multiple components, including iron particles and various impurities such as sand, minerals, and other materials. Each component retains its individual properties and can be physically separated from one another. In contrast, a pure substance contains only one type of particle or molecule, exhibiting uniform characteristics throughout. Therefore, the presence of different materials in the iron sand mixture classifies it as a heterogeneous mixture rather than a pure substance.
pure substance?
If it is pure iron then it is considered to be a homogeneous mixture. Homogeneous is when a substance is the same thing throughout.
No, it is a mixture; rarely a drug is a pure substance.
Mixture
Mixture
Iron is an element, so it is a pure substance.
Iron sulfide is a pure compound. It can be as in aqueous medium too as a solution.
No, Iron is a homogeneous mixture as long as the iron is pure
The way you phrase that is a little dubious because no mixture is a 'pure substance'. However, compounds like iron sulphide that are actually bonded together areconsidered pure substances. The elements of a mixture are not united by a chemical change and can (in theory) be separated.
pure substance?
Iron is an element. It is a pure substance that consists of only one type of atom, specifically iron atoms.
If it is pure iron then it is considered to be a homogeneous mixture. Homogeneous is when a substance is the same thing throughout.
pure substance
No, it is a mixture; rarely a drug is a pure substance.
No, iron metal is not a solution. A solution is a homogenous mixture where one substance is dissolved in another. Iron metal is a pure substance composed of iron atoms.