write the characteristics of compound
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A chemical compound has the following characteristics:
(i) A chemical compound is obtained by the chemical combination of two or more elements in a definite proportion by mass.
(ii) Compounds are homogeneous, i.e. their properties are the same throughout.
(iii) The chemical and physical properties of a compound are entirely different from those of the constituent elements. For example, hydrogen is a combustible gas, while oxygen is a supporter of combustion, but their compound, water is neither combustible nor a supporter of combustion.
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ANSWER :
CHARACTERISTICS OF COMPOUND :
Compound is a pure substance which is composed of two or more elements , combined chemically in a fixed proportioj by weight and can be broken into elements by chemical methods alone.
EXAMPLE :
Water , calcium carbonate
A compound is a homogeneous substance and the property through out the compound is same.
The physical and chemical properties of a compound are different from those of it's constituent elements.
EXAMPLE :
While hydrogen gas is combustible and oxygen is a supporter of combustion,their compound water isn't combustible or non combustible.
In the formation of compounds , generally energy in the form of heat , light and electricity is absorbed or evolved.
The elements of a given compound are always present in definite proportion by mass.
A compound cannot be seperated by simple mechanical and physical processes.
It can be seperated by using chemical or electro chemical processes.