Explain why density is more useful for identifying a substance than either mass or volume

Mass and volume are extrinsic properties.

A pail may contain water that is  1 kg  in mass and  1 L  in volume.

A drop of water may be  1 g  in mass and  1 mL  in volume.

Both are water, but they have different mass and volumes. Therefore you can't identify whether a substance is water just by measuring its mass and volume.

However, the ratio of the mass to volume (density) can be used to identify substances.

false

because it does not have the potential to be entirely used up

the right answer is c i just did the question.