Two samples of solids have similar reactivity with acids and similar densities. Their masses and volumes, however are not at all similar

Question

Is it possible that these are the same substance? (1 point)
• No, it is not possible because they have different extensive properties.
• Yes, it is possible because they have similar extensive properties.
• No, it is not possible because they have different intensive properties.
• Yes, it is possible because they have similar intensive properties.

Answer 1

The correct answer is:

• No, it is not possible because they have different extensive properties.

Extensive properties, such as mass and volume, depend on the amount of substance present. If the masses and volumes of the two solid samples are not similar, they cannot be the same substance, even if they have similar reactivity with acids and densities. Density is an intensive property, which means it does not depend on the amount of substance.