Question

write 3 sentences about each of classification of pure substanc​

Answer 1

Answer:

Explanation:

Any material that is not a mixture, is called a pure substance. Pure substances include elements and compounds. It is much more difficult to break down pure substances into their parts, and complex chemical methods are needed to do this.

Answer 2

Answer:

A pure substance has the constant composition and cannot be separated into simpler substances by physical means. There are two types of pure substances: element and compound.