Question

different b/w compound and mixture

Answer 1

Compounds:
1.Elements react together to form compounds.
2.They are formed as a result of a chemical change.
3.Its constituents can't be separated by physical methods, but only by chemical or electrochemical reactions.
4.The properties of a compound are altogether different from those of its constituents.
5.The constituent elements in a compound are always present in a fixed proportion by mass.
6.A compound has a fixed melting point,boiling point, etc.
7.A compound is homogeneous.
8.Energy, in the form of heat or light is either evolved or absorbed during the formation of a compound.

Mixtures:
1.Elements just mix together, without involving a chemical change, to form a mixture.
2.A mixture is formed as a result of a physical change.
3.A mixture shows the property of its constituents.
4.The constituents of a mixture can be present in any proportion.
5.The constituents of a mixture can be easily separated by physical methods, such as filtration, distillation,etc.
6. A mixture doesn't have a fixed boiling or melting point, since its melting or boiling points of its constituents differ.
7.A mixture may be homogeneous or heterogeneous.
8.Energy, in the form of heat or light, is neither absorbed nor evolved during the formation of a mixture.

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