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.
Ancient method of boiling brine into pure salt in China. Salt, NaCl, is an ionic compound made of sodium and chloride ions which has been exceptionally important to humans for thousands of years, because it is one of the substances upon which all of life evolved to depend.