Question

Which of the following is NOT a physical property of a bronze medallion?

A) that it is shiny
B) that it is hard and durable
C) that it will slowly change color over many years
D) that it sinks in water

Answer 1

The characteristic of a bronze medallion that is NOT a physical property is that it will slowly change color over many years, as this indicates a chemical change rather than a physical one.

Step-by-step explanation:

The question which asks about the characteristic of a bronze medallion that is NOT a physical property is referencing properties that can be observed or measured without altering the substance's identity. Physical properties of matter include characteristics such as being shiny, hardness, malleability, solubility, electrical conductivity, density, melting point, and boiling point. Considering the options provided:

• that it is shiny (Physical Property)
• that it is hard and durable (Physical Property)
• that it sinks in water (Physical Property)
• that it will slowly change color over many years (Not a Physical Property)

The correct answer is that it will slowly change color over many years, which indicates a chemical change as the medallion's surface is likely reacting with elements in the environment, altering its chemical identity over time.