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

reactivity

Explanation:

a chemical reacting to another chemical is considered a Chemical property because chemicals react with other chemicals differently

It's reactivity is a chemical property since that's not determined by a substance's physical traits.

Explanation:

Boiling, density, and conductivity are all determined by factors that are physical, whereas reactivity is derived from chemical properties.

l dont know l am s sorry

it would be a gas formation