what makes a chemical compond different from a mixture?

Answer 1

A chemical compound is a substance which has fixed elements in a fixed ratio of mass(in case of solids),volume(for liquids and gases) of the different elements that constitute the compound.....

Whereas in case of mixtures this is variable..

Moreover the respective elements in compounds lose their respective properties,instead they obtain new properties of the compound and the respective elements. cannot be seperated using simple physical methods.

Whereas in case of mixtures the respective constituent elements retain their properties and can be seperated using simple physical methods

The Following example will explain all of above :

Fe2(CO)3 i.e. Ferric Carbonate is a compound containing Iron,Carbon and Oxygen.... You Cannot get Iron out of it by simple methods....you have to set up extraction plants which is a complex process.

But consider a mixture of Iron and Carbon powder. You can obtain Iron by simply using a magnet.

You can also take the case of Water... Water Contains Hydrogen and Oxygen. Now You must be knowing that water is used to extinguish fire...... but hydrogen in elemental state burns which such a great amount of energy that it is used as a fuel for spaceships.

Answer 2

Components of a mixture retain their own physical and chemical propertirs

but in the form of a compound, the elements lose their original properties and gain new ones

Here are 2 classic examples
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a)
Fe is magnetic, S is soluble in alcohol
A mixture of Fe and S is taken
If alcohol is added, S dissolves, leaving behind Fe
If a magnet is passed over it, Fe moves away, leavin S
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But on heating, Fe and S combine to form FeS
This is neither magnetic nor alcohol soluble

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b)
O is a supporter of combustion
H is flammable
Mixture of O2 and H2 blows up in ur face
But the compound H2O is actually used to douse fire

Answer 3

The prime difference is that with a mixture, you can seperate the components through physical methods (boiling water from sand, filtering the sand from the water, etc.) whereas with a chemical comopund, seperation requires chemical means ( seperating Na from Cl using electricity, same thing with H2 and O2 from water.)

Answer 4

The electron rearrangements that occur when the components form chemical bonds. This doesn't happen in a mixture.

Answer 5

mixture means no chemical bonds between components while compound means chemical bonds between components

Answer 6

Compound: the molecules of the different substances are interwoven with one another e.g water and sugar.

Mixture: the molecules of the different substances are separate from one another e.g water and oil