Question

which option is a physical property of matter? (1 point)
flammability
acidity
boiling point
reactivity

Explanation:

Physical properties of matter can be observed or measured without changing the substance's chemical identity. Flammability, acidity, and reactivity involve chemical changes (combustion, acid - base reactions, chemical reactions respectively). Boiling point is the temperature at which a substance changes from liquid to gas, and this can be measured without altering the chemical composition of the substance.

Answer:

boiling point