Question

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

Answer 1

A

Step-by-step explanation:

Answer 2

A

Step-by-step explanation:

Because density is a physical property and the rest are all chemical properties