Question

which list includes only physical properties?
density, reactivity, and conductivity
boiling point, conductivity, and color
color, odor, and flammability
flammability, reactivity, and ductility

Explanation:

• Physical properties are characteristics of a substance that can be observed or measured without changing the substance's chemical composition.
• Chemical properties describe a substance's ability to undergo chemical changes.
• Density: A physical property (mass per unit volume).
• Reactivity: A chemical property (ability to react with other substances).
• Conductivity: A physical property (ability to conduct electricity or heat).
• Boiling point: A physical property (temperature at which a substance changes from liquid to gas).
• Color: A physical property (visual appearance).
• Odor: A physical property (smell).
• Flammability: A chemical property (ability to burn).
• Ductility: A physical property (ability to be drawn into wires).

Answer:

Boiling point, conductivity, and color (the second option).