Question

which characteristic of a substance is considered a chemical property? its boiling point its reactivity its density its conductivity

Explanation:

A chemical property is a characteristic that describes how a substance interacts with other substances to form new substances. Reactivity (how a substance reacts with other substances) is a chemical property. Boiling point, density, and conductivity are physical properties (properties that can be observed or measured without changing the substance's chemical identity).

Answer:

its reactivity