Question

Explain why (in terms of particles and volume) glycerin is more dense than water.

a) Glycerin particles are larger.
b) Glycerin particles are more tightly packed.
c) Glycerin particles have a higher temperature.
d) Glycerin particles have less mass.

Answer 1

Glycerin is more dense than water because its particles are more tightly packed together.

Step-by-step explanation:

Glycerin is more dense than water because its particles are more tightly packed together (option b). Density is mass per unit volume, and the volume occupied by a substance is related to the size of its particles. Glycerin particles are smaller than water particles, so they can pack more closely together, resulting in a higher density.