Yes, it is heterogenous.
They are homogeneous. But they are not a mixture, so they are a pure substance
The mixture of iodine and ethanol is a heterogeneous mixture because the iodine does not dissolve completely in the ethanol, resulting in visible differences between the two substances.
Yes, a mixture of iodine and water is heterogeneous because the iodine does not dissolve completely in water, resulting in distinct particles of iodine suspended in the water. This makes it easy to visually distinguish between the iodine and water components.
A heterogeneous mixture is a mixture of two or more substances that are not uniformly distributed. The iodine and water in the question are not homogeneous because they are not uniformly distributed.
It is a heterogeneous mixture
pure substance
A type of mixture in which different materials are spread out unevenly is known as a heterogeneous mixture. It is a combination of substances with no uniform composition or properties.
They are a heterogeneous mixture.
Iodine crystals are a pure substance.
Homogeneous mixture
Pure substance; it is one form of pure carbon.
A heterogeneous mixture contains multiple chemical substances combined in a non-uniform way, whereas a pure substance contains molecules with only one chemical identity. For example, salt is a pure substance, whereas a mixture of salt an rocks is a heterogeneous mixture.