Iraq is located on the continent of Asia. It is a part of the Middle East, a region of Asia and North Africa that nurtured some of the oldest human cultures on the planet. Continue Reading
salt is a pure substance because it is created using natural products that were drawn from our environment. in the refining process, there are no chemicals or other new substaâ¦nces added to the original products that would make it a mixture.
A chemical substance (also called a pure substance) may well be defined as any material with a definite chemical composition in an introductory general chemistry textbook.According to this definition a chemical substance can either be a pure chemical element or a pure chemical compound.But, there are exceptions to this definition; a pure substance can also be defined as a form of matter that has both definite composition and distinct properties. common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory.