Identifying compounds Caffeine is the most widely used psychoactive drug in the world and is found in coffee beans, tea leaves,
cola nuts, and other plant products. For many plant species, caffeine serves as a natural pesticide, protecting the plant from insect damage. In our bodies, caffeine affects the rate at which brain cells fire to one another. The chemical formula for caffeine is C₈H₁₀N₄O₂. Which of the following terms correctly describe caffeine? Check all that apply. Element Isotope Matter Compound
