Question

Is a sponge a pure substance or a mixture.

Answer 1

mixture...............

Answer 2

Pure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances. 2. A pure substance has constant physical and chemical properties, while mixtures have varying physical and chemical properties (i.e., boiling point and melting point).

Sponges are made from either polyester or cellulose. ... Natural sponges' endoskeletons are usually composed of a few different minerals, so, also not a “pure” substance, I guess. On the other hand, you could say a real sponge is all natural, and so purely sponge.

Hope this help...