Question

part a completion
use this completion exercise to check your understanding of the concepts and terms that are introduced in this section. each blank can be completed with a term, short phrase, or number.
the ratio of the mass of an object to its volume is its 1.
density is an 2 property that depends only on the 3 of a substance, not on the size of the sample.
part b true - false
classify each of these statements as always true, at; sometimes true, st; or never true, nt.

1. the density of a substance decreases as its temperature is increased.
2. density has units of grams per cubic centimeter.

Explanation:

1. By definition, density is the ratio of mass to volume.
2. Density is an intensive property as it doesn't depend on the amount of substance but only on its type.
3. For 4, generally density decreases with temperature increase for most substances, but there are exceptions like water near 4°C. For 5, grams per cubic - centimeter is a common unit of density.

Answer:

1. density
2. intensive
3. type
4. ST
5. AT