Solutions are homogeneous mixtures whose components keep their different features unchanged.

In general, a solution is an homogeneous dispersion – in different ratios – of two or more chemical species visually indistinguishable.

Solutions, just like suspensions, consist of two components:

1. SOLVENT = vehicle (majority)

2. SOLUTE = the dispersed component (minority)

Main difference between solutions and suspensions:

solutions consist of a mixture of two or more components that form an homogeneous molecular dispersion in a single physical phase.

In suspensions, instead, the solute is physically distinct from the liquid.

A suspension, in fact, normally consists of a mixture of insoluble particles dispersed in a liquid.

LIQUID SOLUTIONS

They consist of liquids containing dissolved gases, liquids or solids. For example, soda is a liquid solution that contains solid substances such as sugar and gaseous substances such as carbon dioxide.

SOLID SOLUTIONS

They consist in solids containing dissolved gases or other solids. Metal alloys such as bronze, brass and steel, for example, are common examples of solid solutions

GAS SOLUTIONS

These are gas mixtures in which there is no distinction between solvent and solute, since gases are miscible in all ratios. The air we breathe is the most emblematic example of this category.