Which statement below describes a physical property of a substance?

A. Helium gas floats because is less air dense than air


B. Sulfuric acid is a toxic liquid

C. Iron rusts when exposed to water and air

D. Sodium metal explodes when exposed to water

Which statement below describes a physical property of a substance A Helium gas floats because is less air dense than air B Sulfuric acid is a toxic liquid C Ir class=