Which statements describe density? check all that apply. density is a chemical property of an object. the density of an object is constant. density is a derived unit of measure. density is the sum of the mass and volume of an object. the density of an object determines whether it will sink or float.

The correct answer to the question is - the density of an object determines whether it will sink or float.

EXPLANATION:

The density of a substance is defined as mass per unit volume.

Let us consider a body whose mass is m and volume v.

Hence, density of a substance is written as -

                               density .

Hence, density is a derived quantity as it is obtained from mass and volume. But, it is not a derived unit. So, it is not a derived unit of measure.

Density of a substance is a physical intensive property. It can not be considered as an chemical property.We can measure the density of a  substance without changing of its chemical composition or identities.

The density of a substance is independent of mass and size of the object. But, it is not a constant quantity. For solids, the density of a substance may be constant as atoms are closely bound to each other. But for gases and liquids, the density is not constant. It is dependent on temperature and other parametres.

Density of a substance gives the idea whether the substance will sink or float. If the density of a substance is more as compared to the liquid, then it will sink. Otherwise it will float.

The correct statements that describe density are :

Density is a derived unit of measurement because it is derived from other fundamental units ( mass and volume ) and it is expressed in the ratio of these fundamental units ( i.e. Kg/m³ )

A more dense object when placed in a less dense solution of liquid will sink. while a less dense object when placed in a more dense solution or liquid will float

Hence we can conclude that The correct statements that describe density are Density is a derived unit of measure and The density of an object determines whether it will sink or float.

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