Question

classify each of the following substances as a pure substance or a mixture. drag the appropriate items to their respective bins. a snickers™ bar soil urine pure water pure substance mixture

Explanation:

• A pure substance has a uniform and definite composition. Pure water (\(H_2O\)) has a fixed chemical composition and is a compound (a type of pure substance).
• A mixture is composed of two or more substances. A Snickers™ bar contains multiple ingredients like nuts, chocolate, caramel etc. Soil is a mixture of minerals, organic matter, water, and air. Urine is a mixture of water, urea, salts, and other metabolic waste products.

Answer:

• Pure substance: pure water
• Mixture: a Snickers™ bar, soil, urine