All of the following are properties of sodium. Which one is a physical property of sodium? A)It is a surface turns black when first exposed to air. B)It is a solid at 25^$\circ$C and changes to a liquid when heated to 98^$\circ$C. C)When placed in water it sizzles and a gas is formed. D)When placed in contact with chlorine it forms a compound that melts at 801^$\circ$C. E)Sodium is never found as the pure metal in nature.

Question

Quizplus · Accepted Answer

A physical property is a characteristic of a substance that can be observed or measured without changing its chemical composition. The fact that sodium is a solid at 25C and a liquid at 98C is a physical property. The other choices describe chemical properties, such as its reaction with air, water and chlorine, or its natural occurrence.

All of the Following Are Properties of Sodium ∘\circ∘ C and Changes to a Liquid When Heated to 98

All of the Following Are Properties of Sodium $\circ$ C and Changes to a Liquid When Heated to 98