How can you determine that a coin is not pure silver if you known the mass and volume of the coin?

By measuring its density which should come out to be at

Step-by-step explanation:

Density is defined as the mass contained per unit volume.

Density of a substance is an intensive property and it does not depend on the amount of matter contained in the substance. It is specific of a compound and thus can be used to know the purity of substances.

Density of silver is at .

Thus if density comes out to be different from the standard value , it means the silver is impure.

both equations and proportions are better.