Question

question 2
what is the best definition of density?
the change from a solid to a liquid state.
the mass - to - volume ratio of matter.
the kinetic molecular theory
the constant motion of particles

Explanation:

• The first option describes melting (change from solid to liquid), not density.
• The second option: Density is defined as mass per unit volume, so "The mass - to - volume ratio of matter" is the correct definition.
• The third option, kinetic molecular theory, explains the behavior of particles in matter, not density.
• The fourth option refers to the kinetic nature of particles, not density.

Answer:

The mass - to - volume ratio of matter.