From the following list of substances, calculate the total number of pure elements: Diamond, Silica, — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Let's classify each: Diamond (Carbon, Element), Silica ($SiO_2$, Compound), Tungsten (W, Element), Dry ice ($CO_2$, Compound), Graphite (Carbon, Element), Brass (Alloy, Mixture), Ozone ($O_3$, Element), 22-carat gold (Alloy, Mixture), White phosphorus ($P_4$, Element). Total pure elements = Diamond, Tungsten, Graphite, Ozone, White phosphorus = 5.