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What is the difference between compound and mixture?

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Last updated date: 23rd Jun 2024
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Answer
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Hint: Anything around us which has some mass and occupies some space is known as matter. It is made up of very small particles called atoms and molecules. Matter is divided into two categories, namely Pure Substances and Impure Substances or Mixtures. Pure substances are further classified into Element and Compound.

Complete step by step answer:

BasisCompoundMixture
DefinitionCompounds are pure substances which contain different elements combined together chemically.Mixtures are the impure substances, made up of two or more substances physically mixed together.
CompositionCompounds have the elements present in fixed quantity, meaning their ratio is fixed.In mixtures substances that are present, are not in fixed quantity, meaning their ratio varies.
TypesCompounds can be of three types, namely covalent compounds, metallic compounds and ionic compounds.Mixtures are mainly of two types, namely homogenous mixtures and heterogeneous mixtures.
PropertiesIn compounds, the properties are fixed and do not vary, as the elements present in the compounds are fixed and are in the fixed ratio.But in mixtures the properties vary as it depends on the type of substances and the quantity by which these are mixed.
FormulaCompounds have a specific formula, depending on the constituent’s which it is made up.Mixtures do not have a particular formula.
SeparationThe elements are not easy to separate as they are chemically bonded. It needs to be done by chemical methods.The substances of the mixtures can be easily separated. It can be done by different physical methods like filtration, chromatography, evaporation.
SubstancesIn compounds there is always formation of the new substances because mixing of the chemical properties of the different constituents takes place.No new substances are formed from the mixtures because of individual and unchangeable properties of its constituents.
Melting/Boiling pointOnce the compounds are formed, have fixed melting and boiling point.Mixtures do not have fixed melting or boiling point.
ExamplesBaking soda, Methane, Salt, etc.Soil, oceanic water (salt and water), mixtures of gases, etc.


Note:: Both compounds and elements come in the category of pure substances. Elements contain only one kind of atom which cannot be broken down into any simpler matter by either chemical or physical methods. Examples: Argon, Nitrogen