D diamond 24 Which of the following describes a chemical property of oxygen? A Oxygen is a gas at room temperature. B An oxygen molecule has an atomic mass of 32 amu. C The density of oxygen is 0.00133 g/cm3. D Oxygen reacts with iron to form rust.

Answer 1

The correct answer is D: Oxygen reacts with iron to form rust.

A chemical property describes the ability of a substance to undergo a specific chemical change. In this case, the reaction of oxygen with iron to form rust (iron oxide) is a chemical property. The other options (A, B, and C) describe physical properties of oxygen.