Question

what is hydrogen peroxide (h₂o₂) ?
compound
element
homogeneous mixture
heterogeneous mixture

Explanation:

To determine what \( \ce{H_2O_2} \) (Hydrogen Peroxide) is, we analyze each option:

• Element: An element consists of only one type of atom. \( \ce{H_2O_2} \) has two types of atoms (hydrogen and oxygen), so it is not an element.
• Homogeneous Mixture: A homogeneous mixture is a combination of two or more substances with a uniform composition, but it retains the properties of its components. \( \ce{H_2O_2} \) is a single substance with a fixed chemical formula, not a mixture.
• Heterogeneous Mixture: A heterogeneous mixture has a non - uniform composition. Since \( \ce{H_2O_2} \) is a single substance, it is not a heterogeneous mixture.
• Compound: A compound is a substance made up of two or more different elements chemically bonded in a fixed ratio. In \( \ce{H_2O_2} \), hydrogen (\( \ce{H} \)) and oxygen (\( \ce{O} \)) are chemically bonded in a ratio of 2:2 (or 1:1), so it is a compound.

Answer:

A. Compound