List five characteristics by which compounds can be distinguished from mixtures.
Answers
1-two or more elements are combined chemically.For example-Sugar mixed in water.
2-the elements are present fixed ratio by mass.Foe example -in water(H20) the two elements Hydrogen and Oxygen are combined in the ratio 1:8 by mass .This ratio is always mixed whatever may be the source of water
3-the constituents cannot be separated by physical means.For example -You cannot separated Hydrogen and oxygen present in water by your hands(Can-You?)
4-the constituents lose their identities i.e., a Compound does not show characteristics of the constituting elements.(For example -whereas Hydrogen is combustible and oxygen supports combustion but water extinguished fire)
5-Compounds are always homogeneous i.e. they have the same composition throughout.
In a mixture:
1-two or more elements are simply mixed and not combined chemically.For example air is a mixture of different gases like nitrogen ,oxygen ,Carbon dioxide ,nobel gases etc.However they are not combined chemically.
2-the constituents are not present in fixed ratio .It can vary.For example -You can add as much amount of Complan in Milk as you want .It is not fixed.
3-The constituents can be easily separated by physical means.For example-Sugar mixed in salt can be separated by hands.
4-The constituents do not lose their identities by.You can figure out this from the above example.
5-Compound have different composition throughout.
That's all!
Compounds:
Compounds:It is a pure substance
Compounds:It is a pure substanceIt cannot be separated by physical method
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compounds
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixed
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixedIt has a fixed melting point
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixedIt has a fixed melting pointMIXTURES:
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixedIt has a fixed melting pointMIXTURES:It is an impure substance
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixedIt has a fixed melting pointMIXTURES:It is an impure substanceCant be separated by physical method
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixedIt has a fixed melting pointMIXTURES:It is an impure substanceCant be separated by physical methodSubstances forming mixture retain their properties
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixedIt has a fixed melting pointMIXTURES:It is an impure substanceCant be separated by physical methodSubstances forming mixture retain their propertiesIt has no fixed composition
Compounds:It is a pure substanceIt cannot be separated by physical methodElements lose their properties in compoundsIts composition is fixedIt has a fixed melting pointMIXTURES:It is an impure substanceCant be separated by physical methodSubstances forming mixture retain their propertiesIt has no fixed compositionIt has no sharp melting point
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