all pure substances contain ____ particles or group of particles having a definite set of property
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A pure substance contains only one type of particles which can either be atoms or molecules or elements or compounds.
A pure substance cannot be separated into other kinds of matter by any physical process but a mixture can as they are impure substances because they contain more than one particles. Ex: salt solutions.
A pure substance has fixed composition as well as fixed melting and boiling points. Ex: salt.
Pure substances cannot be exemplified by all elements other than nickel because pure nickel is an element containing only one kind of particles.
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all pure substances contain only one element particles or group of particles having a definite set of property.
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