Question

list two difference between pue substance and mixture

Answer 1

a substance is only one atom is called a pure substances
impure substances is one or more substance

Answer 2

pure substance:- matter that has same composition and properties throughout is called a substance.

mixture:- it is the combination of two or more substances where each substance retain its own identity.

differences :-
1)pure substance:- a pure substance have only one component.
eg:- pure water
2) element and compound are both pure substances it is a collection of dissimilar particles that will not undergo a chemical reaction.

mixture:- mixture has variable combination
eg :- alcohol
2)a mixture can be either homogeneous or heterogeneous.

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