What is the difference between a substance and a mixture?
Substance is pure while mixture is impure.
Substance has many components while mixture has one only.
Substance can be separated while mixture cannot be separated.
Substance is heterogeneous while mixture is homogeneous.
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Answer:
A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.
a pure substance, any compound or element, can't be separated into different atoms by physical methods. ... Remember that pure substances are compounds and elements (made up of the same atom or same molecule respectively), while mixtures are an assortment of different substances put together.