Question

which of these is a chemical property of a substance?
texture
ductility
reactivity
conductivity

Explanation:

Texture is a physical - observable property. Ductility is the ability to be drawn into wires, a physical property. Conductivity is the ability to conduct heat or electricity, also a physical property. Reactivity is the tendency of a substance to undergo a chemical change or reaction, which is a chemical property.

Answer:

C. reactivity