Question

Which one of the following is not a pure material

Answer 1

Answer:

Aerated water is a homogeneous mixture of carbon dioxide and water. It is not a pure substance. Carbon dioxide is a compound while oxygen and zinc are elements which are a type of pure substance. How satisfied are you with the answer

Answer 2

Answer:

Heterogeneous mixtures are not pure substances. Examples of materials that are not pure substances include gravel, your computer, a mixture of salt and sugar, and a tree