When two or more substances combine so each maintains its own properties what is the result?
A mixture is the result when two or more substances combine in a way that each substance retains its own unique characteristics. Salt water is an example of a mixture.
In a physical change of matter, no new substances are formed. However, physical properties such as size, shape, color, or phase may change. Dissolving, melting, evaporating and grinding are examples of physical change. As a result of chemical change, one or more new substances with new and different properties are formed. The new substances are different from the original substance. Burning and the rusting of iron are examples of chemical change.
Answer 1: All elements are not pure substances yet all pure substances are single elements. I believe a mixture can be made up of more than one "pure substance" However,a mixture's individual properties retain their original forms and no new chemical if formed as result of the combining. Also, a mixture's properties can not be physically separated, whereas a pure substance may require electricity or heat. Answer 2: A pure substance is made up of…