Compounds and solutions are pure substances
compounds
how are solutions suspensions and colloids alike
A solution is a homogeneous mixture.
Colloids are neither homogeneous nor heterogeneous. They are kind of intermediate and are a separate group themselves.
The enzymes are organic compounds generally of biochemical interst. They are not colloids or solutions, but they can exist in solution or colloidal form.
Suspension is a heterogeneous mixture in which insoluble solid particles are dispersed in a liquid. Colloids are homogeneous mixtures where particles are intermediate in size between those in a solution and a suspension, and do not settle out. Solutions are homogeneous mixtures where substances are completely dissolved in a solvent.
None of them. They are complex biological structures.
Colloids are heterogeneous mixtures because they contain dispersed particles that are not dissolved and are larger than those found in true solutions, giving them the appearance of being mixed yet not fully dissolved.
Brass is a solid solution. If you melted it, it would still be homogeneous, it wouldn't separate out...ever.
A homogenous mixture of two or more substances that are not solutions is a colloid. Colloids have particles that are larger than the particles in a solution, but still do not settle out over time. Examples of colloids include milk and fog.
Matter is the overarching category that encompasses elements, compounds, mixtures, and solutions. Elements are pure substances made of only one type of atom, while compounds are made of two or more different elements chemically bonded together. Mixtures, on the other hand, consist of physically combined substances that can be either homogeneous solutions or heterogeneous suspensions and colloids, which have particles dispersed but not dissolved in a medium.
No, not all homogeneous mixtures are solutions. While all solutions are homogeneous mixtures, there are other homogeneous mixtures, such as colloids and suspensions, that do not meet the criteria of a solution (solute completely dissolved in a solvent).