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Compound vs. Mixture — What's the Difference?

By Tayyaba Rehman — Updated on November 3, 2023
A compound is a substance with atoms of different elements bonded together; a mixture has multiple substances mingled without chemical bonds.
Compound vs. Mixture — What's the Difference?

Difference Between Compound and Mixture

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Key Differences

A compound is a chemical entity consisting of two or more different atoms bonded together in a fixed proportion by mass and is represented by a chemical formula. A mixture, however, is a combination of two or more substances that are not chemically bonded together and can be separated by physical means. Compounds have properties distinct from their component elements, while mixtures retain the properties of their individual substances.
In a compound, the elements involved undergo a chemical reaction to form a new substance with new properties. For mixtures, the blending of substances does not involve a chemical reaction and no new properties emerge. For instance, water (H2O) is a compound formed by the elements hydrogen and oxygen, while air, a mixture, is mainly composed of nitrogen, oxygen, and other gases.
The ratio of elements in a compound is always uniform, as is the case with sodium chloride (salt), which has a consistent NaCl structure throughout. In contrast, mixtures like soil can have varying compositions with different proportions of sand, organic matter, water, and other components. The creation of a compound involves a chemical change, whereas the creation of a mixture is a physical change.
Compounds can be broken down into simpler substances only by chemical means, often requiring energy input such as heat or electricity. Mixtures, on the other hand, can be separated into their individual components through physical processes such as filtration, distillation, or using a magnet. Saltwater is a common example where evaporation separates the mixture into water and salt.
In summary, the key distinction lies in the bonding: compounds are chemically bonded and have new chemical properties, while mixtures have no chemical bonding and maintain the physical properties of their individual substances. The process of formation and separation further differentiates compounds from mixtures.
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Comparison Chart

Bonding

Atoms chemically bonded
No chemical bonding between substances

Composition

Fixed ratio by mass
Variable composition

Properties

Distinct from its constituent elements
Retains properties of its constituents

Separation

Requires chemical methods
Separable by physical methods

Example

Water (H2O)
Saltwater (NaCl and H2O not chemically bonded)

Compare with Definitions

Compound

A substance with two or more elements chemically combined.
Table salt is a compound formed from sodium and chlorine.

Mixture

A combination of two or more substances that retain their own properties.
A salad is a healthy mixture of vegetables and fruits.

Compound

Molecules made up of atoms from different elements.
Water is a compound made up of hydrogen and oxygen.

Mixture

A blend that can be separated into its components.
A trail mix is a tasty mixture of nuts, seeds, and dried fruits.

Compound

To combine so as to form a whole; mix
Tin was often compounded with lead to make pewter.

Mixture

Physically blended materials that are not chemically bonded.
The baker prepared a mixture of flour, sugar, and butter for the cake.

Compound

To produce or create by combining two or more ingredients or parts; compose or make up
Pharmacists compounding prescriptions.

Mixture

Substances mingled together without a fixed proportion.
Air is a mixture of various gases like nitrogen and oxygen.

Compound

To settle (a debt, for example) by agreeing on an amount less than the claim; adjust.

Mixture

Various elements or compounds together in no set ratio.
The potting soil is a mixture of compost, vermiculite, and peat moss.

Compound

To compute (interest) on the principal and accrued interest.

Mixture

In chemistry, a mixture is a material made up of two or more different substances which are not chemically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.Mixtures are one product of mechanically blending or mixing chemical substances such as elements and compounds, without chemical bonding or other chemical change, so that each ingredient substance retains its own chemical properties and makeup.

Compound

To add to or intensify so as to make worse
"The university authorities ... compounded their crime in dismissing [the professor] by denying that their action ... reflected any abridgment of academic freedom" (John Kenneth Galbraith).

Mixture

The act or process of mixing
An alloy made from the mixture of two metals.

Compound

To make worse by being an additional or intensifying factor
High winds compounded the difficulties of the firefighters.

Mixture

The condition of being mixed
The inevitable mixture of different cultures in big cities.

Compound

To combine in or form a compound.

Mixture

A combination of ingredients used in cooking or baking.

Compound

To come to terms; agree.

Mixture

One that consists of diverse elements
The day was a mixture of sun and clouds.

Compound

Consisting of two or more substances, ingredients, elements, or parts.

Mixture

A fabric made of different kinds of thread or yarn.

Compound

(Botany) Composed of more than one part
A compound pistil.

Mixture

(Chemistry) A composition of two or more substances that are not chemically combined with each other and are capable of being separated.

Compound

A combination of two or more elements or parts.

Mixture

The act of mixing.
The mixture of sulphuric acid and water produces heat.

Compound

(Linguistics) A word that consists either of two or more elements that are independent words, such as loudspeaker, self-portrait, or high school, or of specially modified combining forms of words, such as Greek philosophia, from philo-, "loving," and sophia, "wisdom."

Mixture

Something produced by mixing.
An alloy is a mixture of two metals.

Compound

(Chemistry) A pure, macroscopically homogeneous substance consisting of atoms or ions of two or more different elements in definite proportions that cannot be separated by physical means. A compound usually has properties unlike those of its constituent elements.

Mixture

Something that consists of diverse elements.
The day was a mixture of sunshine and showers.

Compound

A building or buildings, especially a residence or group of residences, set off and enclosed by a barrier.

Mixture

A medicinal compound, typically a suspension of a solid in a solution
A teaspoonful of the mixture to be taken three times daily after meals

Compound

An enclosed area used for confining prisoners of war.

Mixture

(music) A compound organ stop.

Compound

An enclosure within which workers, prisoners, or soldiers are confined.

Mixture

A cloth of variegated colouring.

Compound

An enclosure for secure storage.

Mixture

(India) A mix of different dry foods as a snack, especially chevda or Bombay mix.

Compound

A group of buildings situated close together, e.g. for a school or block of offices.

Mixture

The act of mixing, or the state of being mixed; as, made by a mixture of ingredients.

Compound

Anything made by combining several things.

Mixture

That which results from mixing different ingredients together; a compound; as, to drink a mixture of molasses and water; - also, a medley.
There is also a mixture of good and evil wisely distributed by God, to serve the ends of his providence.

Compound

(chemistry) A substance formed by chemical bonding of two or more elements in definite proportions by weight.

Mixture

An ingredient entering into a mixed mass; an additional ingredient.
Cicero doubts whether it were possible for a community to exist that had not a prevailing mixture of piety in its constitution.

Compound

A substance made from any combination of ingredients.

Mixture

A kind of liquid medicine made up of many ingredients; esp., as opposed to solution, a liquid preparation in which the solid ingredients are not completely dissolved.

Compound

(linguistics) A lexeme that consists of more than one stem.

Mixture

A mass of two or more ingredients, the particles of which are separable, independent, and uncompounded with each other, no matter how thoroughly and finely commingled; - contrasted with a compound and solution; thus, gunpowder is a mechanical mixture of carbon, sulphur, and niter.

Compound

(linguistics) A lexeme that consists of more than one stem or an affix, e.g. bookshop, high school or non-standard.

Mixture

An organ stop, comprising from two to five ranges of pipes, used only in combination with the foundation and compound stops; - called also furniture stop. It consists of high harmonics, or overtones, of the ground tone.

Compound

(rail) A compound locomotive, a steam locomotive with both high-pressure and low-pressure cylinders.

Mixture

(chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)

Compound

Composed of elements; not simple.
A compound word

Mixture

Any foodstuff made by combining different ingredients;
He volunteered to taste her latest concoction
He drank a mixture of beer and lemonade

Compound

(math) Dealing with numbers of various denominations of quantity, or with processes more complex than the simple process.
Compound addition
Compound proportion

Mixture

A collection containing a variety of sorts of things;
A great assortment of cars was on display
He had a variety of disorders
A veritable smorgasbord of religions

Compound

(music) An octave higher than originally (i.e. a compound major second is equivalent to a major ninth).

Mixture

An event that combines things in a mixture;
A gradual mixture of cultures

Compound

(transitive) To form (a resulting mixture) by combining different elements, ingredients, or parts; to mingle with something else.
To compound a medicine

Mixture

The act of mixing together;
Paste made by a mix of flour and water
The mixing of sound channels in the recording studio

Compound

To settle by agreeing on less than the claim, or on different terms than those stipulated.
To compound a debt

Compound

(transitive) To settle amicably; to adjust by agreement.

Compound

(intransitive) To come to terms of agreement; to settle by a compromise.
To compound with someone / for something

Compound

To compose; to constitute.

Compound

To increase in value with interest, where the interest is earned on both the principal sum and prior earned interest.

Compound

To worsen a situation.

Compound

Of a horse: to fail to maintain speed.

Compound

In the East Indies, an inclosure containing a house, outbuildings, etc.

Compound

That which is compounded or formed by the union or mixture of elements ingredients, or parts; a combination of simples; a compound word; the result of composition.
Rare compound of oddity, frolic, and fun.
When the word "bishopric" was first made, it was made as a compound.

Compound

A union of two or more ingredients in definite proportions by weight, so combined as to form a distinct substance; as, water is a compound of oxygen and hydrogen.

Compound

To form or make by combining different elements, ingredients, or parts; as, to compound a medicine.
Incapacitating him from successfully compounding a tale of this sort.

Compound

To put together, as elements, ingredients, or parts, in order to form a whole; to combine, mix, or unite.
We have the power of altering and compounding those images into all the varieties of picture.

Compound

To modify or change by combination with some other thing or part; to mingle with something else.
Only compound me with forgotten dust.

Compound

To compose; to constitute.
His pomp and all what state compounds.

Compound

To settle amicably; to adjust by agreement; to compromise; to discharge from obligation upon terms different from those which were stipulated; as, to compound a debt.
I pray, my lords, let me compound this strife.

Compound

To effect a composition; to come to terms of agreement; to agree; to settle by a compromise; - usually followed by with before the person participating, and for before the thing compounded or the consideration.
Here's a fellow will help you to-morrow; . . . compound with him by the year.
They were at last glad to compound for his bare commitment to the Tower.
Cornwall compounded to furnish ten oxen after Michaelmas for thirty pounds.
Compound for sins they are inclined toBy damning those they have no mind to.

Compound

Composed of two or more elements, ingredients, parts; produced by the union of several ingredients, parts, or things; composite; as, a compound word.
Compound substances are made up of two or more simple substances.

Compound

(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

Compound

A whole formed by a union of two or more elements or parts

Compound

An enclosure of residences and other building (especially in the Orient)

Compound

Make more intense, stronger, or more marked;
The efforts were intensified
Her rudeness intensified his dislike for her
Potsmokers claim it heightens their awareness
This event only deepened my convictions

Compound

Put or add together;
Combine resources

Compound

Calculate principal and interest

Compound

Create by mixing or combining

Compound

Combine so as to form a whole; mix;
Compound the ingredients

Compound

Of leaf shapes; of leaves composed of several similar parts or lobes

Compound

Consisting of two or more substances or ingredients or elements or parts;
Soap is a compound substance
Housetop is a compound word
A blackberry is a compound fruit

Compound

Composed of many distinct individuals united to form a whole or colony;
Coral is a colonial organism

Compound

Chemically bonded elements with a fixed ratio.
Carbon dioxide is a compound that plants use during photosynthesis.

Compound

A new substance resulting from a chemical reaction.
Rust is a compound that forms when iron reacts with oxygen.

Compound

A pure chemical substance with a unique chemical formula.
Sucrose is a compound commonly known as table sugar.

Common Curiosities

Can compounds be separated by physical means?

No, compounds can only be separated into their elements by chemical means.

Can a mixture become a compound?

No, a mixture cannot become a compound without a chemical reaction occurring.

What is an example of a compound?

Water (H2O) is an example of a compound.

Are the properties of compounds predictable?

Yes, the properties of a compound are predictable based on the elements involved.

Can the composition of a mixture be altered?

Yes, the composition of a mixture can be altered since it does not have a fixed ratio.

Is brass a compound or a mixture?

Brass is a mixture, specifically an alloy of copper and zinc.

Are all mixtures homogeneous?

No, mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition).

Is rust a compound or a mixture?

Rust is a compound resulting from the reaction of iron with oxygen.

How is a compound different from an element?

A compound consists of two or more elements combined chemically, whereas an element is a pure chemical substance that cannot be broken down.

What is an example of a mixture?

Sand and iron filings mixed together is an example of a mixture.

Is air a compound or a mixture?

Air is a mixture of different gases, mainly nitrogen and oxygen.

How are mixtures classified?

Mixtures are classified as homogeneous or heterogeneous.

Can mixtures be separated by distillation?

Yes, mixtures can often be separated by distillation if they have different boiling points.

Do mixtures have chemical formulas?

No, mixtures do not have chemical formulas because they are not chemically combined substances.

How are compounds represented?

Compounds are represented by chemical formulas.

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Author Spotlight

Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.

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