The two samples may be the same substance even though they have different masses and volumes.
We must know that properties that identify a substance are called intensive properties. Samples that have similar intensive properties are likely to be the same substance since these properties are characteristic of the substance.
Density is an intensive property. If the two substances have similar densities and similar reactivity with acids, they may be the same substance even though they have different masses and volumes.
Learn more about intensive properties: https://brainly.com/question/17323212
