Question

29 multiple choice 0.3 points which is not a pure substance? copper sulfuric acid, h2so4 tomato soup carbon dioxide, co2 clear my selection

Explanation:

A pure substance has a fixed - composition. Copper is an element, sulfuric acid and carbon dioxide are compounds. Tomato soup is a mixture of water, tomatoes, salts, and other substances with a variable composition.

Answer:

C. tomato soup