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.
1 But if these components are separated physically, each can be obtained in pure form and each meets all the criteria for compounds. 2  Compounds are made of atoms of two or more elements. 3  For example, O 2 and O 3 are considered forms of the element oxygen, and not compounds of oxygen. Compounds are pure substances and not mixtures. 2  For example, table salt is not a compound because it is a mixture of sodium chloride, dextrose and calcium silicate (to keep it from clumping in high humidity) and potassium iodide (an important nutrient necessary for proper thyroid function).