Question

what is the difference between a pure substance and a mixture ? give one example in each case.​

Answer 1

Answer:

A Pure Substance has elements or compounds of only one kind (like only oxygen and hydrogen in water), on the other hand, a mixture has two or more kinds of elements/substances (like mixture of salt and sand).

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Answer 2

Answer:

Pure substance is made up of only one kind of particles(atoms/molecules) whereas mixture is made up of more than one kind of particles mixed in any ratio.