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2025-11-17T09:55:44Z

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== Differences between Compound and Mixture ==
In chemistry, a compound is a substance formed when two or more chemical elements are chemically bonded together, whereas a mixture consists of two or more substances that are not chemically combined.<ref name="ref1" /> Chemical reactions result in the formation of compounds.<ref name="ref2" /> Conversely, mixtures are formed by physically combining substances.<ref name="ref3" />

Compounds are considered pure substances, while mixtures are classified as impure substances.<ref name="ref4" /> The elements within a compound are present in a fixed ratio by mass, which is represented by a chemical formula.<ref name="ref2" /><ref name="ref5" /> For example, water (H<sub>2</sub>O) is a compound composed of hydrogen and oxygen atoms chemically combined in a 2:1 ratio. Mixtures, on the other hand, have variable ratios of their components. For instance, a saltwater solution can have different concentrations of salt.

The properties of a compound are distinct from those of its constituent elements.<ref name="ref3" /> For example, sodium, a reactive metal, and chlorine, a toxic gas, combine to form sodium chloride (table salt), an essential compound for life. In a mixture, the individual components retain their original properties.

The formation of a compound involves a chemical change accompanied by an energy change, such as the release or absorption of heat or light. The creation of a mixture is a physical change with no associated energy change. Separating the components of a compound requires chemical methods to break the chemical bonds, such as electrolysis.<ref name="ref3" /> In contrast, the components of a mixture can be separated by physical means.<ref name="ref1" />

=== Comparison Table ===
{| class="wikitable"
|-
! Category !! Compound !! Mixture
|-
| '''Formation''' || Chemical combination of elements in a fixed ratio.<ref name="ref2" /> || Physical combination of substances in a variable ratio.<ref name="ref3" />
|-
| '''Chemical Bonds''' || New chemical bonds are formed. || No new chemical bonds are formed.
|-
| '''Properties''' || Has properties different from its constituent elements. || Components retain their individual properties.
|-
| '''Separation''' || Components can only be separated by chemical reactions.<ref name="ref3" /> || Components can be separated by physical methods (e.g., filtration, evaporation).
|-
| '''Energy Change''' || Energy is either absorbed or released during formation. || No energy change occurs during formation.
|-
| '''Composition''' || Always homogeneous in nature.<ref name="ref3" /> || Can be either homogeneous or heterogeneous.
|-
| '''Melting & Boiling Points''' || Has a fixed melting and boiling point.<ref name="ref3" /> || Melts and boils over a range of temperatures.<ref name="ref3" />
|}

[[File:Venn_diagram_Differences_between_Compound_versus_Mixture_comparison.png|thumb|center|800px|alt=Venn diagram for Differences between Compound and Mixture|Venn diagram comparing Differences between Compound and Mixture]]

=== Separation of Mixtures ===
The components of mixtures can be separated based on their physical properties. Common separation techniques include:
* '''Filtration:''' This method is used to separate an insoluble solid from a liquid, such as sand from water.
* '''Evaporation:''' This technique separates a soluble solid from a solvent by heating the solution until the solvent evaporates, leaving the solid behind.
* '''Distillation:''' This process separates liquids with different boiling points. The mixture is heated, and the liquid with the lower boiling point vaporizes first, is then condensed, and collected separately.
* '''Chromatography:''' This method is used to separate different components of a solution by passing it through a medium where the components move at different rates.

== References ==
<references>
<ref name="ref1">[https://www.chem.purdue.edu/gchelp/atoms/elements.html "purdue.edu"]. Retrieved November 17, 2025.</ref>
<ref name="ref2">[https://edu.rsc.org/resources/chemical-misconceptions-ii-elements-compounds-and-mixtures/1083.article "rsc.org"]. Retrieved November 17, 2025.</ref>
<ref name="ref3">[https://byjus.com/chemistry/difference-between-compound-and-mixture/ "byjus.com"]. Retrieved November 17, 2025.</ref>
<ref name="ref4">[https://www.vedantu.com/question-answer/difference-between-compound-and-mixtur-class-11-chemistry-cbse-5f6108590b2e30778aa916b2 "vedantu.com"]. Retrieved November 17, 2025.</ref>
<ref name="ref5">[https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFO-Q-0eBD_pNvF9iYN275RRokLdDS8H7TLm4pN1mTUxhKC2zBI82Vu8N5tXhHGVInfyAUuVJkMQyDJMSUqJ1MGYFBot7xvE8SEJAf4t2GFGluRoJEAm9QujRBaJbL8WhAeHGjLgWFxqeXQzn2q2ja6O1e9f3iww6fCgY3VVBs9NlbRiyLo_tg= "testbook.com"]. Retrieved November 17, 2025.</ref>
</references>

[[Category:Comparisons]]

Differences between Compound and Mixture - Revision history

Dwg: Article written and Venn diagram created.