In chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is dissolved in another substance, known as a solvent. The solvent does the dissolving.
| TYPES | EXAMPLES | SOLUTE | SOLVENT |
| Gaseous Solutions Gas in Gas | Air | Oxygen | Nitrogen |
| Liquid Solutions Gas in Liquid Liquid in Liquid Solid in Liquid | Antifreeze Sea water | Ethylene glycol Sodium chloride | Water Water |
| Solid Solutions Liquid in Solid Solid in Solid Gas in Solid | Steel Charcoal filter | Carbon Poisonous Gases | Iron Carbon |
Gaseous Solutions
A gaseous solution is when two or more gases are mixed together and become uniformly intermingled. The atmosphere is a gaseous solution. It consists of nitrogen, oxygen, argon, carbon dioxide, water, methane, and some other minor components.
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Examples of Gaseous Solutions:
Liquid Solutions
Liquid solutions are the most common type of solutions. In liquid solutions, the solvent is always a liquid. The solute may be a gas, a liquid, or a solid.
Examples of Liquid Solutions:
Solid Solutions
A solid solution is a solid-state solution of one or more solutes in a solvent. Such a mixture is considered a solution rather than a compound when the crystal structure of the solvent remains unchanged by addition of the solutes, and when the mixture remains in a single homogeneous phase.This often happens when the two elements (generally metals) involved are close together on the periodic table; conversely, a chemical compound is generally a result of the non proximity of the two metals involved on the periodic table.
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Examples of Solid Solutions:
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